My previous 462 with 254 degrees intake duration made peak power at 5800 rpm with the Performer RPM intake and peak power at 6000 rpm with the Victor intake. My 505 with the 260 degree cam followed the same trend between the two intakes, give or take depending on the pull, about a 200 rpm differance.
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'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 )
Old information here:
http://www.hotrod.com/articles/0712p...tiac-trans-am/
Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine)
5.14 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension
https://www.youtube.com/watch?v=qDoJnIP3HgE
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