Recommend Head Rebuilding

I kept my stock bottom end after teardown of my 318. My pistons were .040" in the hole but rings were good. To help things out, I went with warmed over 302's. 1.88"/1.60 valves with some unshrouding & mild bowl work. .028" head gasket and the same cam you referenced(xe268 ). I have the Performer intake, but wished I would have went with the Weiand or the M1/stealth, I would have went that way. I run a Holley 600 vac & matched it up with Hooker Comps & 2 1/4 dual exhaust.

I'm extremely happy with the 318 & didn't spend much money at all. Night & day between day one performance & what I have now. The only thing holding me back is the 2.76 gears in the back. I'm building an 8.75 suregrip now with 3.23 gears & expect that to pair up well with the 2200 stall & TF-2 shift kit. Should be a nice package for a cruiser and I feel the components compliment each other well.

I would try to talk you out of those open chamber heads, though. Good luck with your build.