[F ROCK]

I have a 455 block bored .030 with the cheaper sealed power forged pistons w/ flat tops.. (i'm not sure of the part #).
The block was not decked but my novice eye and a straight edge tell me they are all the way at the top.
I have unported 6X-4 heads that measured 92cc; and retain the stock valve sizes.
I have a 1972 iron intake and a Q-jet.

The online compression calculators that I have found produce a variety of results from 9.7:1 to 10.4:1.
No roller cam in the budget.
Car is a 1971 GTO, non A/C, 4 speed M20, 3.73 gears. I have another rear that has 3.08 gears, but the 3.73 is in the car right now.
The car has Ram Air d port iron headers and a 2.5 pypes system with street pro's and X pipe.
350-375 hp is fine as it's just a cruiser. street manners and reliability.

I had selected the ole melling spc-7 (068?) for the simplicity of retaining my stock valve hardware, and because of the horror stories w/ flat tappet cams.

I know this is a very small cam for this build but is it TOO small for a simple street machine?
I've been searching a lot on these forums and some say a cam too small can detonate and have tuning issues.