From post #26- "I don’t know what the specs for the cam where, maybe someone on the forum does. It was a Isky solid roller"
Jay, Not sure if its the same Isky solid roller but back in 2019 you mentioned a Isky solid roller from their 901 series. It was a single pattern with 290/290 advertised.
The .050" duration was 252/252 and ground with a 112 lobe separation.
The lobe lift was 0.3170" and 1.65 rockers . The cam card suggested 0.025" lash.
The grind # was RR-505c62
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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/
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