First EVER run
The 302 heads he is using are closed chambered 318 heads not 360 heads. The will raise compression a bit. He added 1.88 valves from a set of 360 heads to them. I think there is still a lot left in that combo with some tuning and maybe a few changes.
First thing I would do is add a set of 3.91s with a sure grip and get some 26" tall slick or M/T drag radials and swap in a good converter.
What are you running for a carb and intake ?