in 1965, The ford Galaxie with the 4bbl 390 came STOCk with 10.1 Why would I want to go any lower than stock? Ill go high 9's atleast to satisfy me. Bigger HP gain.

C5AE-R heads are not nescessarily stock you know. They came in the police intercepters. Its more of a Hipo head. What do you think?

Ive read the forum, (even though they werent for the C5AE-R heads, and it sounds great).

New valve seats? I never heard of getting new seats.

Speedpro is the only company that makes high compression pistons for my engine.

Sterlings the summit guy couldnt get the specs from, and keith blacks where 9.4:1.