I called AFR, they recommended the AFR 205 (part number 1450) with the 8019 spring and I won't have any valve float. They recommended the Comp Cam Xtreme Energy part #35-426-8. The AFR rep pulled the specs on my "dish" pistons and said they were 64cc, so the recommended set up would give me a 10.3:1 compression ratio. He is confident of at least 525hp with this set up after doing some math.
They want me to check two things 1) the rocker arm geomitry/pushrod length and 2) piston and valve clearance so I don't ruin the engine. I have no idea on how to begin doing that. If I check into this ahead of time, I should not need to cut anything. Hopefully, whoever I do this with will know exactly what I need to do.