"... keep the CR around 10.25 (with alum heads)?
...would I also need to think about getting frame connectors if I put that much torque into my '70 Trans Am?"
IIRC, most here say 10.5 CR is OK, with alum heads. Obviously, 10.25 would give a bit more margin of safety. But, there are always guys who like to stretch the limit & run lot's more. They say they watch the tune real close, & have never had any problems. Others are more conservative & play it safe. The choice is yours.
Connectors couldn't hurt anything, IMO.
Last edited by ponyakr; 12-03-2021 at 10:59 PM.
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