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Old 10-21-2025, 10:02 AM
Steve C. Steve C. is offline
Ultimate Warrior
 
Join Date: Dec 1999
Location: Liberty Hill, Tx. (Austin)
Posts: 10,928
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The Bullet lobes appear to be HR290/3533 and HR298/3533

https://www.bulletcams.com/Masters/HRlobes.htm

290
236
156
.3533

298
244
163
.3533



.

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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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