X-heads or J-heads on a 360 LA Engine
He mentions 2.02's, want them, put them in the J's. If the seats aren't killed on the 1.88's and the valves are good, leave them. Have to buy fresh, cut them for 2.02's if you wish. Blending the bowl cut for 2.02's from 1.88's is just good process when doing so. Racing right. LOL No common sense when it comes to building things.
You have a flowbench, so you know exactly where that was coming from. Mention performance and it's racing. Go assume something else.
You picked it apart with the racing comment.