Quote:
Originally Posted by special-K
Aluminum heads will let you run higher compression on pump gas.You could go close to 10:1.I`m building a 327 with 76cc heads and flat tops.I`ll be at about 9.75:1 and I`m planning on running regular most of the time.If you run premium the mileage will improve enough with a light foot to pay you back about 1/2 the extra you spent on premium.(in any motor)
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So, umm, What would my compression ratio be in my 327, using TRW Flat Tops w/4 valve reliefs, Steel head gaskets (replaces original) and GM Performance Parts Cyl Heads with 64 CC chambers, 170 CC intake runners?
BTW I run on midgrade pump gas which is 89 octane, 650 CFM Edelbrock, retarded the timing, and I am at about 5300 feet above sea level.
