[swb85]

Easiest/cheapest fix is a cam swap. That old edelbrock grind has a really early intake closing point, so your dynamic compression is through the roof.....way too high for pump gas. I would look at something like a comp XR288HR or something similar. It's only a few degrees bigger @ .050" than what you have now, but it will drop your dynamic compression down in the ~8.4:1 range which will run perfectly fine on 93 octane with full ignition advance.

Also, I think you'll want more stall speed than 2200rpm regardless of whether you swap cams or not.....I'd run between 2500-3000rpm if it were mine.