Thread: 454 fiero

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Originally Posted by gearGrinder

Can you say "money pit?"

If I were you, I'd try to make your current setup work reasonably well. What if you buy a new carb, throw it on and NO difference, then what?

If there is a problem beyond the carb a new one won't fix it, but I agree it is an easy fix but hoping things work themselves out and get better is only that, hope.

I'd try new plugs before a new carb, you'd be surprised what a difference the right plugs can make, and it's only a $20 risk.

Best of luck, looks like a unique ride for sure!

If you buy a new carb from Summit, they will take it back if it doesn't work for you, no hassles. Excellent company, nothing to lose by trying a new carb. The Edelbrocks would match your intake, and work great right out of the box. Dumping more money and time into the old setup doesn't sound smart to me, IMHO based on what you have already spent and done.

ok Was thinking maybe my exhaust might be restricting the motor too much, so I was thinking bout getting exhaust dumps. A couple guys up here said on the older motors that the open header help proformance a ton. An was figuring if I ran a y pipe in to the cutout then there would be no restriction at all I beleve I got a 2 1/2 inch or 3 in exhaust but it goes 2 in to one. was thinking the open header would free up the restriction.

if you run headers and use a 2 into one setup, your basically shooting yourself in the foot.

Originally Posted by stovens

If you buy a new carb from Summit, they will take it back if it doesn't work for you, no hassles. Excellent company, nothing to lose by trying a new carb. The Edelbrocks would match your intake, and work great right out of the box. Dumping more money and time into the old setup doesn't sound smart to me, IMHO based on what you have already spent and done.

I agree Summit is an excellent resource for this and many reasons, but if we abuse their liberal return policy, it WILL end; the bean counters will see to that. Most vendors have changed their return policies lately, can't see how Summit won't if it costs them too much $ in the long run

As far as *trying* a new carb, unless you spend the time and $ to tune it to your engine/needs, it might very well be a useless exercise - let's hope it comes out of the box ready to run as is. How often has that worked for you? Me, not so much...

Fieroboy, it seems you have a narrow issue, your fuel curve; tune your carb and go have fun - I guarantee you, it won't be the last issue you'll have with a unique build, but have fun in the process

Originally Posted by gearGrinder

I agree Summit is an excellent resource for this and many reasons, but if we abuse their liberal return policy, it WILL end; the bean counters will see to that. Most vendors have changed their return policies lately, can't see how Summit won't if it costs them too much $ in the long run

As far as *trying* a new carb, unless you spend the time and $ to tune it to your engine/needs, it might very well be a useless exercise - let's hope it comes out of the box ready to run as is. How often has that worked for you? Me, not so much...

Fieroboy, it seems you have a narrow issue, your fuel curve; tune your carb and go have fun - I guarantee you, it won't be the last issue you'll have with a unique build, but have fun in the process

Yea doing that to summit would be like buying a suit for one occation to look pretty an then returning it. Im not in to the scam artist kinda thing. I have a guy coming over tonight thats a local stock car racer at our local track an he said hes really good with the BB motors he's coming over with a avenger series carb he said the DP carb is probably too much. he said he's bringing a 750 avenger. I said I already have a 750 DP but he said a DP will dump more fuel even if there the same CFM so an I think I might just run straight pipes out the side of the car behind the rear tires. an use a super trap style exhaust resonator tip with the plates an what not to try an quiet it down. I dont mind the soundI can only drive it 20 miles at a time any way.

Originally Posted by fieroboy_gt

Yea doing that to summit would be like buying a suit for one occation to look pretty an then returning it. Im not in to the scam artist kinda thing. I have a guy coming over tonight thats a local stock car racer at our local track an he said hes really good with the BB motors he's coming over with a avenger series carb he said the DP carb is probably too much. he said he's bringing a 750 avenger. I said I already have a 750 DP but he said a DP will dump more fuel even if there the same CFM so an I think I might just run straight pipes out the side of the car behind the rear tires. an use a super trap style exhaust resonator tip with the plates an what not to try an quiet it down. I dont mind the soundI can only drive it 20 miles at a time any way.

I think you misunderstood what I posted. I meant if the new carb worked then you were good to go. As in keeping and using it. I didn't mean to imply abusing their generous policies. I also know if it didn't work they would understand and take it back. Not meant as an abuse, sorry you infered that just trying to offer help that won't cost an arm and a leg. Good luck.

Originally Posted by stovens

I think you misunderstood what I posted. I meant if the new carb worked then you were good to go. As in keeping and using it. I didn't mean to imply abusing their generous policies. I also know if it didn't work they would understand and take it back. Not meant as an abuse, sorry you infered that just trying to offer help that won't cost an arm and a leg. Good luck.

Oh my bad. Its not a big deal anyway. I didnt mean it like that. An that does make sences.

accually here is a question for you guys. The carburator on the motor is technicaly turned backwards. the throttle is on the passanger side of the car the fuel rail is on the drivers side of the car. Im sure if you were to look at almost everycar made with a carb the throttle would on the drivers side of the motor.but on this car the the opisit. the primary jets would be fueling cylinder 5 6 7 8 an the secondarys would be hitting 1 2 3 4. which is the opisti of how it works ussually. do you think that that could have a part in any of this. or does that not really matter

ok so Im going to scrap the holly. I have a quadrajet that I got out of a 69 chevell that had a 454 that A friend lent me an I am going to try out. I found out having the carb on backwards makes no difrence. so Im going to try this carb an if it works he'll trade me even. Im working on rerouting the exhaust out the side of the car thru the quarter panels. pretty much straight pipes Im either gonna use some super trapp muffler tips or two mini mufflers. just to get rid of the popping sound from back firing from the straight pipes. todays been a good day. fix my plow an got it hooked up to the suzuki samurai an got a soft top for it so im not running around in a bikini top. the winters are cold in maine an it is snow already. so its been a successfull weekend. cant wait to get this carb on here an see what happens.

a q-jet wont bolt up backwards like a holley will. what intake are you using??

Originally Posted by gassersrule_196

a q-jet wont bolt up backwards like a holley will. what intake are you using??

I hope it will cause if it wont that will suck balls. I have a edelbrock tourqer intake. not sure about anything after that. its not a stock intake. thats all I know.

you may wanna re think this, the torker doesnt accept the q-jet style bolt pattern. however there are square-bore to spread-bore adapter plates you can pickup for10-20 bucks, i have one floating around here somewhere your welcome to it if ya need/want it. then you would be able to mount it backwards. but on a q-jet intake the q-jet would only go one way.

Originally Posted by gassersrule_196

you may wanna re think this, the torker doesnt accept the q-jet style bolt pattern. however there are square-bore to spread-bore adapter plates you can pickup for10-20 bucks, i have one floating around here somewhere your welcome to it if ya need/want it. then you would be able to mount it backwards. but on a q-jet intake the q-jet would only go one way.

Hey thanks for the heads up. I'll just buy one from my local parts store. Would the adaptor plate affect anything like power or what not?I thought that the quadra jet an the edelebrock carbs shared the same bolt patterns.

no q-jet and holley spread bore have their own unique pattern. a spreadbore if the best of both worlds you can tune it like a holley buy get gas mpg of a q-jet

Originally Posted by gassersrule_196

no q-jet and holley spread bore have their own unique pattern. a spreadbore if the best of both worlds you can tune it like a holley buy get gas mpg of a q-jet

all spread bore carbs will bolt to a spread bore intake holley .carter .Qjet and you can put the carb facing what ever way it will bolt on the intake the carb will not know wich way it runs down the road the floats may work one way better then another under hard use . but it will work