New heads/intake/rear end

I've heard good and bad things about Elsasser. But I've never heard anything about them doing head porting. I'll ask around.
Enlighten me and whom would you send someone too.

I was leaning more towards going with new aluminum heads for a couple of reasons... 1. Weight savings. 2. Starting off with the same chamber size as I have now, but without the sealing issues.

Not a bad idea. How far down the hole do the pistons sit?