Sounds like the current combo is a good candidate to try the roller cam swap first and see how it pans out.
If you pull the heads off to swap the springs/retainers/etc, then I’d have them milled a bit to sneak it closer to 12:1.
Post a pic of a representative time slip.
Cool car
This is a time slip from last weekend. I didn't mention but the car has 2' hooker super comp headers, and a hood scoop. I put a fiberglass hood on last year.
