The Butler HFT cam linked in post #5 above is made up of Comp XE lobes number 5445 & 5208 shown on page 14 in the link below.
These lobes are custom ordered by Butler with a 112 Lobe separation.
https://www.compcams.com/lobe-catalog
( Information provided in this post does not represent any endorsement for the cam. And unless specified it is not based on personal experience and is offered for general interest only )
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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