Combo opinions...

Finally ready to get back to work on the Dart for this season. This year's budget is meager so I'm just going to focus on getting more out of the basically stock 318. I came across a set of 302 heads for next to nothing & after some consideration have a prospective build that seems to fit my budget. I'm hoping a few folks could talk the pros & cons with me.

Wont be racing but would like to show off when I want to. I'm not trying to be radical but ideally would like to push over 300hp. Here's the setup in question;

I already have:
Intake: Edelbrock performer
Carb: Holley 600
Exhaust: 2 1/4" duals w/ stock manifolds
& I just picked up the 302 heads from a local wrecking yard.

Next is head work:
mill the heads .050" to help compression & port & blend
2.02/1.60 valves

Narrowed the cam selection down to two prospects:
224/230 at .050 110deg lobe w/ 477/.480 lift

or

218/228 at .050 114deg lobe w/ 441/441 lift

Looks like parts would run just under $500. Haven't quoted head work yet, if someone could ballpark me I'd appreciate it.