Slow build 71 Scamp 440

9.48:1 with the .050 the gasket.
I would use a .039 gasket to get the compression up , you can afford to with aluminum heads
If you already have those 2 head gaskets sizes then use the thinner
Ok .039 is what I have so I’ll slap that on. That should get me to the sweet spot? 10.1 or close?