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Old 05-29-2018, 06:34 PM   #17
DieselSJ
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Join Date: Jun 2016
Location: Phoenix, AZ
Posts: 574
Re: What size Carb? 400 sbc

Quote:
Originally Posted by Cam1968rsss View Post
Hi all, have 408 ci sbc (bored 40 over 6 inch stroke crank) have a Comp Cams 490 lift hydraulic cam 487 irons heads. Have two different Holley DP carbs, 650 and 700. Was wondering if anyone had an idea which would work better. Truck will have Turbo 350 trans, power brakes and power steering.

Thanks
Cam1968rsss
What is the duration on the cam? That makes more of a difference than the lift.

But from what you have told us so far, go with the 650.
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