340 compression ratio

I cked a few things last night after work. Looks like 75 cc’s on my heads (i had a hard time getting all the air bubbles out), I’m at 0 deck. I contacted silvolite via email and the pistons with the reliefs are 10cc’s with 1.824 compression height. The cylinders are .030 I just used the simple compression calculator on summits website. If I use a .028 headgasket looks like the best I can get is about 8.75. Unfortunately I pulled the valves from one of the heads and the guides are pretty worn. I know the wiggle test is not the way to check them but the wiggle test is all it takes to see these are worn out. So my delima is now to decide what to do. I can buy new heads but that’s a lot of coin for a working man. I’m gonna call our one and only machine shop and check for prices on guides and maybe milling the heads. I’d like to get the compression in the 9’s for the street.

You need to put the hole in the top of the cylinder for the cover plate to help get the bubbles out, plus tilt the parts so the hole is the highest point so you can get as much air out as possible...

I know a great head guy in Detroit.... He can fix them up if you need his number, let me know... (he gives good head....LOL)