Valve stem length for the 1.800" installed height on Edelbrock cylinder heads...
87cc chamber the intake is 5.093 and the exhaust is 5.110
72cc chamber the intake is 5.213 and the exhaust is 5.230
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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)
Best time 5.13 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension
https://www.youtube.com/watch?v=qDoJnIP3HgE
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