Hot Rod Magazine tid bit....
You must also pay attention to maintaining the proper intake/exhaust flow ratio. According to the article the exhaust side determines the width of the powerband. The greater the exhaust flow as a percentage of intake flow, the narrower the powerband.
A fwiw, I recently had Bullet regrind a used solid roller cam that I had on hand. Went with the same .050" duration on the intake but less exhaust duration. Both lobes not as aggressive as before and with less lobe lift. They can't change the lobe separation. The cost was $157.50 plus shipping.
__________________
'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
Last edited by Steve C.; 04-25-2021 at 03:44 PM.
|