[David Holmberg]

Originally Posted by dda72

Pontiac-dude, the goal is 5.80-5.90 in the 1/8 mile with a 72 Firebird weighing 3580 lbs on 10.5 tire naturally aspirated. Current set up runs 6.35 @ 105 MPH with RamAir IV heads so hopefully 925-950 hp would get very close. The thought was an aluminum block would save weight on the nose along with aftermarket strength compared to a stock block. After reading some of the posts I need to do more homework for sure!

Thanks,
Dwight

As close to Butler and AllPontiac as you are, I'd give them both a call and see what they recommend.