Thread: Still having complications

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sooooo---what did you drop the pressure to??? do you have pressure guage where you can see it while driving?? why no answers to my questions??
Where is Sapulpa?

Originally Posted by jerry clayton

sooooo---what did you drop the pressure to??? do you have pressure guage where you can see it while driving?? why no answers to my questions??
Where is Sapulpa?

hey i give you the answer .... hi jerry .... if this thing under 8.5 cr with any cam fuel is running out his tail pipes at idle

sorry jerry i missed that post. i dropped it down to 5 last night and checked the power valve it already has a 3.5 in it but didnt get a chance to drive it. sapulpa is in oklahoma. Pat i didnt build this motor so im learning about it as i go but it is a 427. im not 100% sure it has flat tops in it but with it liking alot of timing and runs with no detonation on 91 octane im assuming its a lower comp engine. so if it does have flot tops and with the heads being a 109cc it would still struggle to get 9-1 compression?

there is many things that can add or sub on CR hard to say if the heads have been cut down like .050 off then? is the block @ O deck ? what head gasket was used ? 4.370 fire ring or a 1017 fel pro with a 4.540 fire ring bigger and thicker head gasket= l less cr . the best you could hope for with the heads at 108 and O deck would be a round 8.5 like i posted on here many times

i know none of the above lol. surely it has more compression that that, i need to find a borea scope and see if i can tell if it has domes or not. did you watch the video?

no i did not look at the video.. but if its a flat top with stock un cut heads and stock deck height on block its less then that i been at this for some time on BBC .far from my first time at the Rodeo thats the carb you have on there NOW?? thats a very very old 4500 holley

i understand, not meaning to be argumentative jsut trying to learn . it would help everyone out if i knew exactly what all has been done to it, i should yank it out and put the 462 in it i know whats in it lol

Originally Posted by Cooter1989

i know none of the above lol. surely it has more compression that that, i need to find a borea scope and see if i can tell if it has domes or not. did you watch the video?

you said this surely it must be more then 8.5 ? i can not tell you i do not know what you have for pistons in it ? but if flat tops and a427 with stock uncut heads it just plane can not be that with a stock deck it can be less .yes the best thing is to pull the heads off or look in the head with a bore scope and see what you have for a piston. is thats your carb on there now?? thats not a BG carb but a older 4500 dominator

i didnt mean the surely its got more bc ur wrong i ment that bc of the way its runs and sounds