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Old 03-20-2020, 08:10 AM   #4

62nalide's Avatar
Drives: 2013 SS
Join Date: May 2013
Location: DFW
Posts: 4,048
Originally Posted by John_C View Post
What kind of estimated power increase are we talking on a setup like mine if I switched to those heads?

Car is on about 14psi with a D1X and 3.9" pulley making 760 rwhp.
These result in 1-1.5lbs boost drop and gains if around 35-50whp on that setup.
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