A few questions

So what you are saying Ferg Is that I have to put more into the block to get what I want out of the alum. heads?
I want the motor to be streetable, but fuel economy is not a problem.

I was considering dome pistons, I dont know what rods to get, same for crank and cam. I am certain that someone at hughes will hook me up though. My only concerns are the heads, and matching the ports on the intake with the heads, but this is much; much further down the line.

What I am saying is...that because the lifter bore are pointed/angled more toward the cylinder [as in not pointed parallel with block angle up from the valley] you end up losing lift do to the drastic angle of the push rod between the rockers adjuster and the lifter.

Just get a lil bigger cam [lift] than you planned in order to hit the lift goal you want.

If a .500 lift cam only shows .488 at the valve/rocker, but you really want .500, order up a .512 lift cam.

see what I mean?