Head Gaskets???

Slantsix64 said

KRAZYKUDA,
sounds like your machine shop screwed something up, i have a 1989 318 heads milled .045 using fel pro 1008 9:8:1 CR no issues, and also have a 360 with heads milled .045 1008 fel pros no issues there too.

Click to expand...

I'm running the 67 273 920 head with the fel pro 8553PT head gasket...

My head guy wouldn't mill any extra off the heads but what was needed to make the surface flat and straight...

That combo will get my stock 72 short block up to 8.5 compression....