Join Date: Sep 2014
Location: Waynesville, oh
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I'm in the same position. I'm restoring a '67 that is not numbers matching. Have procured a low comp 455 but it's a 73 so the heads are no good. I think it goes without saying if you're going Edelbrock aluminum you want the 87cc ones, not the 72's. Probably also want the d ports so you can keep your RAIII cast headers.
You may also want to look at Kauffman Racing Equipment, they have 64/75/85 cc aluminum dports.
My understanding is you can go a little higher on compression with aluminum heads because they stay cooler and are more efficient. Your setup sounds a lot like what I want to do, .030 over, aluminum heads, RA exhaust, and a factory aluminum intake so I can install the '67 HO ram air pan. I also just finished my rear, I went a little taller with a 3:23 Auburn posi. Mine won't see ignition for another year or two, doing a frame off and just last weekend turned the socket wrench from loosen to tighten, long way to go.
If you install the aluminums let us know how it goes!