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Z4MYBOYS
05-02-2005, 06:31 PM
Does anyone know how much horsepower corvettte alluminum heads ( casting # 10088113 ) from a zz motor can support??

Lowend
05-03-2005, 04:35 PM
Stock they flow about 210cfm on the intake, with really good porting you could see MAYBE 260cfm
Realistically The L98 heads are DONE at 450HP even with good porting