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1970C20-402Pooch
01-16-2006, 04:38 PM
I have a stock 402BB in Chevy C20 3/4 Ton w/ Turbo400AT And 4.56 gears in rear. Will change to hedman headers and flowmasters 2.5inch soon. Which carb size Demon or Holley would be best for good gas milage and performance?

LowBuckX
01-19-2006, 10:54 PM
Uhm neither... For Economy and performance Get a proper Q-jet.

rocketman
01-20-2006, 02:42 PM
750 vac secondary.

justanova
04-01-2006, 09:50 AM
Uhm neither... For Economy and performance Get a proper Q-jet.

I'm with him, try Qjet from jet performance