the dual quads that were used on the early 283's were Carter WCFB's, not AFB's or Edelbrock AFB clones. I don't know the cfm rating, but they were tiny compared to today's carbs.
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the dual quads that were used on the early 283's were Carter WCFB's, not AFB's or Edelbrock AFB clones. I don't know the cfm rating, but they were tiny compared to today's carbs.
Tech,as I posted earlier in this thread I believe they were somewhere around 300cfm. I had a matched pair years ago and the front carb for all practical purposes was gutted. The throttle bores were about the size of a quarter.Quote:
Originally posted by techinspector1
the dual quads that were used on the early 283's were Carter WCFB's, not AFB's or Edelbrock AFB clones. I don't know the cfm rating, but they were tiny compared to today's carbs.
maybe not a stock 283 but i could certainley use 2 390's of the 450's easily:3dSMILE:
Could I use a holley carb #8007 390cfm rating in my 283 or think it would need the 500 cfm you statedQuote:
Originally posted by gassersrule_196
maybe not a stock 283 but i could certainley use 2 390's of the 450's easily:3dSMILE:
A 390 carb will feed a 283 just fine up to about 5,000 rpm's.
get a 600 and quit asking what carb to use:LOL: a 600 holley works fine its not to much if it was it wouldnt of worked for me:LOL: ......scooter
See Kids this is were Math in school was important!!!
I wish i would have payed more attention cause all this confuses me. :whacked:
:LOL:
I like Denny's formula.....cubic inches times 2 equals cfm. :)Quote:
Originally Posted by 64Galaxie
I had a hot 283 in a '54 Bel Aire in the '60's. My brother had a 3-bbl Holley, we bolted it on one day just for laughs. It would bog like mad at anything below 5 grand, but when it caught, all hell broke loose. She'd howl like a raped ape and go all squirrely! 4.11 posi and 15" rubber, right up in smoke! Unfortunately, sooner or later I had to shift to second, and start all over. Don't think I ever got it past the "bog" in top gear, 5 grand was not possible the way it ran. Everybody told me to richen the secondaries, but you could drop a wooden match through the stock jets and not touch the sides. An economy carb it was not! Don't recall the CFM, something like 1150? It worked on a 440 Magnum, but just a tad bit big on a baby mouse.I guess the moral of the story is, you can make anything work, kind of, if you're dumb enough to try it.
The old 283s had WCFB or 4GC Carbs while the later engines (up till 66) had the Rochester 4GC. I think they were around 485 CFM The Dual four 283s came in 245 hp or 270 hp. The 245s had the hyd cam while the 270s were solids. Dual fours on the 283 ended in 1961.Quote:
Originally Posted by SBC
Bob
A 600 cfm carb. will work if you plan on turning the engine above 7,000 rpm's.Quote:
Originally Posted by gassersrule_196
are you sure?
depends on the compression, our old 301 had 11:1's and the 600 worked fine it ran 13.1 all day long every weekend. ive done that cfm calculation and i belive mine came out to 654.7 but i had a 650 on there and it didnt work for nothing. put the 750 on there runs good, just a matter of dialing in the air-bleeeds for the weather now. <well when the tracks open :LOL: bout 3-5 inches of snow here now <barfs>
Copression has nothing to do with picking a carb.Quote:
Originally Posted by gassersrule_196
The old CID X MAX. RPM'S DIVIDE BY 3456 still works great.
Quote:
Originally Posted by gassersrule_196
Geez Scooter, never took you for a lightweight!!!! Get them new studded drag slicks and get out there and do some bracket racing.!!!! Not too much longer around home here and the lakes will all be frozed good and solid so I can go out and practice my uncontrollable slides across the ice. Just getting ready for Bonneville, ya know!!!!!:LOL: :LOL: :LOL: :LOL: