finally it looks like V-8 time

found an early pan so scrap the last question.

On to heads!
I found a compression calculator online and have been playing with it.

if I go with the 302 heads, I get an approx. 9.6:1 compression ratio.
if I use the 273 heads which are closed chambered, I will get an approx. 9.5:1 compression ratio.
if I go with a set of earlier open chambered heads, I get an approx. 9.2:1 compression ratio.
if I go with the late open chambered heads, I get an approx. 8.9:1 compression ratio.

these calculations are made with the assumed head CC's of 57 for the 273 heads, 60 for the early 318 heads, 63 for the late 318 heads, and 56 for the 302's, and my -.050 deck height clearance.

I'm thinking the early 318's with 9.2 sounds most manageable. I'm going to clean up a set of '74 318 heads and see what they look like. any feedback would be welcomed.:-D