[Skippy597]

Just ordered pistons and now of course I'm wondering if I should have gone for more compression.
Here's the specs

400 block zero decked 4.15 bore
Scat forged 4.25 crank
Scat H beams 6.8 rods
Ross/butler Pistons 22cc dish
Speedmaster 72cc heads (CC'd right at 72cc)
Cam is going to be a comp/butler 236/242 @ .050 roller cam

M20 trans / 3.36 gear

Should put me right at 10:1 if I calculated right. But now I'm wondering if I should have gone with 20cc and brought it up a hair. This is a hot street car that will see lots of miles so I was thinking 10:1 is safe.

The pistons were the last piece of the puzzle so I got them ordered last night. However I'm sure I can still change the order if needed.

I realize I'm splitting hairs over a few tenths but it was a thousand dollars for the pistons and want to make sure I'm right the first time.