318 hp estiimate??? need input

Smoking? So what's your valve guide clearance? Bore taper?

I'd guess 145 hp, 90 at the wheels if you run the miserable factory 64-67 intake. Why would you increase your intake to "360 size" with 302 heads? And why on Gods green earth would you re-drill a 65 intake for later heads? No, really, that intake is no prize, trade it for a Performer.

That cam should idle just fine. If a rough idle is your only goal, go bigger.