With the AFR heads is should be easy. I'm making more than 325hp/350ft-lbs with unported GT-40P's, GT-40 intake, .500" lift cam and shorty headers. The AFR's have some fantastic flow numbers and look to be great head. They're pretty new to the market, but if you watch the NMRA Pure Street guys this year I think you'll see some running some pretty impressive numbers with the AFR's.
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Jeff Chambers
Trophy Stock #3
11.97 Seconds / 114.5 MPH
Chambers Racing Team