I know this isnt the for sale section, but if your after an OEM look, I have a set of 596 smogger heads that will hang with Edelbrocks up to .500", then they are about 10 cfm behind at .550" and then die at .600". Fresh never run...stainless valves (1.94/1.60) good solid lift springs (or remove the inners for a mild hyd cam)...iron adjustable rockers are avail, too.

I'd sell them WAY cheaper than redoing the J-heads or popping for Eddy's.

PM if you're interested.