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05-13-2009, 08:42 AM
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Carb Selection
Okay, i have a 355 sbc with a performer rpm cam and intake. Its going in a 86 cutlass supreme approx 3500 lbs. Heads are #441 stock chevy, approx 9.5:1 compression. Converter is B&M 2200-2400 stall. Transmission is a TH350 and rear end gear is 3.42. I plan on taking the car to 6500-7000rpm when i visit the track. Now i went through my box of carbs and i have a few diferent choices. The three carbs are:
Holley 1850-4 0576 Holley 3918 or 3318 (Can't tell first two numbers were too close.) 2527 Carter AFB Competition Series 9605S 0384 they are all spread bore, and the two holleys i believe are 4160 series. The holley numbers came off the choke housing. Can anyone give me a suggestion on which one will work best, some info on them, and maybe some upgrades i can do like converting the 4160 to 4150. Thanks in advance Shane Last edited by zildjian4life218; 05-14-2009 at 05:54 PM. 
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05-17-2009, 08:30 PM
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Any chance that this Holley 3918 / 3318 is a 3310? That's a pretty popular 750.
The Holleys offer a lot more adjustment and tuning potential compared to the AFB. Buy Holley's assortment of springs for the vacuum secondaries and read up on tuning them, you should be in good shape so long as they're mechanically sound.
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05-18-2009, 06:11 AM
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i am almost certain on the number, i will go and check today. is the 4150 conversion worth the fifty bucks?
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