#302 or #308 heads?

302 heads on a 360 would lack upper rpm hp and basically become a cork.
Too lil port volume/cross section.
If they were full ported, then you may have something good .

In stock form you are comparring the 360 that flow roughly 215cfm w/1.88 int and 165cc vs 302 heads that flow roughly 170cfm w/1.78 int with 124cc port volume. Side note...unless the 302 heads you have were bowl blended/ported for those 1.88 valves...they might flow less than stock.