Cam advice for ill advised 318 combo?

3.23s shouldn't give you any issues with that size tire. The only departure I would make from rumble's advice would be with the converter. The cam description says a stock converter is acceptable for matching components, but depending on how you want it to accelerate from a dig, I'd (personally) choose something about 2200-2500 RPM because of the lower static compression ratio and the cam suggests power band starting about 1800. You could advance it a few degrees and try to help out the bottom end a little..JMO though-take it with a grain of salt.

Although I can't be too sure regarding the choke, but I'd venture to say it may be a little delayed by comparison to manifolds.