What CFM should i get for my stock LG4? I'm going to dump that Quadrajet and get a Holley sometime this summer and wondered which one is big enough? Also what part number would be appropriate?

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Whenever I "Fix" my car, something always "breaks"
1984 Trans Am 305 LG4, 5 speed Auto
RPO codes point to Recaro version, want to put a 500 Cadillac in but money is on a vacation...
Mods

More coming...
P.S. Daily Driver

[This message has been edited by 84TransAm (edited January 15, 2001).]

 

If the motor's never going to see the high side of 5500 then a cheap 600 cfm vac secondary carb will do just fine. If you plan on moving up to a 350 (or larger) or otherwise working it over for some serious horsepower in the near future then I'd go with a 750 for starters, maybe more. The QJet you're taking off flows 800 CFM with minor tweaking, by the way.

 

Damon a 100% volumetricly efficient 350 at 6000 RPM only flows like 640 CFM. ****, even the best thirdgen without power adder is only at 90% VE and thats like 576 CFM. Don't get a big carb you will only loose torque and kill throttle response! 600 CFM is plenty. Hell, I have run 12.98 on an Edelbrock 600.

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84 Camaro ZZ4 with HOT cam. 1.88 60' (12.98 @ 105MPH E.T.)
Other Mods: You name it and I have probably changed it.

2001 Dodge Ram Quad Cab 5.9L 4*2

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