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Old 06-21-2002, 10:02 PM   #14
Rick 91GT
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Join Date: May 1999
Location: Hanover, PA
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he Holley will outflow a Street and Track heat all day long and it will outflow a R up to 6600rpm. Flow numbers don't mean more power.

As for the 75mm being too big I say no it isn't, I picked up 2mph with just a swap from a 65mm Accufab to my 75mm Accufab with no loss in low end torque although my combo is based on making more power up top where I can take advantage of it. Rick @ AFM told me buy it big and buy it once on numerous dyno's down there they have seen no damage by having a large 75mm-80mm TB on a NA car with healthy combo's. They say a 75mm MAF is good for 650HP as well but how many 600HP cars have that small of a MAF..none. You will need to port match your heads to the Holley though it has a 1262 gasket port. It really depends on your combo.

Whats the duration on your cam? How much overlap does it have?
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