Vortec heads
 

I have a 1996 Baja 240 7.4 L 4bbl. Runs great but looking for a little more power until I can get a 496 done.
This is a pre Vortec transional engine (L-29 block but came with peanut port heads)
I purchased a 2000 Vortecec 7400 rebuildable engine core and am planning using these heads in place of my old 118 cc peanut port heads. Looks like if I square up the 100cc 7400 head by milling a few thou. and use a .027 cometic gasket 9.5 to 1 or a little more shoud be doable.
What cams have been working best with this head with 9-10 to 1 compression?
The GM 454/502 HO cam 510/540 .211in .230 ex.looks like an inexpensive option. Any one have experience with this or similar combos. Valve clearance issues??

Just checking to see if you did this head and cam swap.