Mopar
You got any spare heads at all kicking around. I once put an entire 318 2bbl top end on an LC 340, with the 340 springs.What a blast.At least until 5000 or so. Just saying.
If you plan to zero deck it,grab the Eddies now, and just drive it.BUT NO CAM.
Got another one for ya.
From my previous post with the Eddies; Total combustion chamber volume of 99.5, stock type cam with a (Im guessing) ICP of 40*ATDC, Scr comes to about 8.45, and the Dcr to about 7.8.Which might run something like 7.2 with aluminum. Not blazingly strong but not that lazy either, and probably still better than with the iron heads, or at least not worse.
I just wanted you to realize that the heads by themselves,with no other changes, wont win you any races.
If you have to buy heads regardless, then the Eddies is the way Id go.