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william-theglassman · 04-15-2013, 08:27 PM

I am at 20mpg right now after rebuilding a holly 450 economaster .2000 rpm at 55mph .305 small chamber heads .270 jegs cam.2 in spacer .runs great .

04-15-2013, 08:27 PM	#54
william-theglassman Registered User Join Date: Jun 2009 Location: lake charles louisiana Posts: 94	Re: 20 mpg hijack thread I am at 20mpg right now after rebuilding a holly 450 economaster .2000 rpm at 55mph .305 small chamber heads .270 jegs cam.2 in spacer .runs great .