360 questions

The roller cam bit is nice to have, but certainly not a necessity-don't allow yourself to be hung up on it. Like Rumble alluded to, and I'll add there are literally hundreds of off the shelf grinds to choose from that would work well with your stock heads and a decent intake to provide you with a fun street/strip car--lots of potential. Don't forget though, the engine is only a part of the package...more cam demands more stall, and more gear...more power means you'll tweak the chassis a little harder...going faster, and getting there quickly means you'll need good brakes. Just keep everything in perspective and come up with a no-bs goal of what you want to accomplish, and go from there.

Oh-Welcome to FABO! Use the search function-there's thousands of helpful threads on here, and check out the resto threads--really cool stuff there!