The 7501 Air Gap RPM should work well in your application, matching the characteristics of the cam.

In my opinion, I'd go with screw-in studs and full-roller rockers instead of the cheezy half-rollers. It's your money, do as you wish.

Your crank, rods and pistons stack up to 9.001". The block is 9.025". This will leave the piston 0.024" down in the hole at TDC and won't do much for squish if you use a conventional gasket of around 0.040" thickness, resulting in a squish of 0.064". If it were my motor, I'd use a Fel-Pro #1094 shim gasket, 0.015" thickness, to put the squish at 0.039". With 731 cc's in the cylinder, 77 cc's in the chambers, 3 cc's in the gasket, 5 cc's in the deck and (negative) 3.5 cc's in the piston, your c.r. would be 9.96:1 and the motor should run well on premium pump gas with the tight squish. I'd run 12 degrees initial lead at the crank and 22 degrees of centrifugal lead, all in by 3,200 rpm's.