Cylinder #7 down on compression

For what it's worth, I run the engine through break in, 2 or 3 heat cycles. Then retorque the heads. Felpro #1008's. Yes, it's a pain, you have to pull the exhaust manifolds or headers back. Started doing this after I had my block square decked and new trick flow heads. Made the mistake of using orange antifreeze, both heads leaked. Getting rid of the orange antifreeze and retorquing fixed the issue. Had the same issue of leaking with Fram kinda green looking antifreeze. Use straight good old 3 year green antifreeze.
Several will argue, but that's okay. Just saying what has worked, or not worked for me with 2 cars.