[J P Stein]

Before you get too het up....
Has it been sitting for long?
Did you open the throttle all the way?

For more power:
The usual, more compression, more cam.

If you are going to crack the bottom end:
Knife edge crank
"Eyebrow" the cylinders
Radius the web supports

Do the tin cut for added cool, while you're there.

Every litter bit helps.