The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 400 sbc build need head and ignition advice

crashmod · 10-13-2015, 06:40 PM

Basically horrible as well. I never really averaged it but if I was guessing I would say 8 or less. I do know I can drive it down the road about a half a mile do one burnout and drive back home and it eats about a 1/4 tank of 93. But it puts on one great tire show.

10-13-2015, 06:40 PM	#14
crashmod Registered User Join Date: Oct 2015 Location: Fairview Nc Posts: 6	Re: 400 sbc build need head and ignition advice Basically horrible as well. I never really averaged it but if I was guessing I would say 8 or less. I do know I can drive it down the road about a half a mile do one burnout and drive back home and it eats about a 1/4 tank of 93. But it puts on one great tire show.