65 Barracuda 318 Rebuild, Cam, timing, lifters maybe a kit?

I how much was gained from the 1.88 valves vs the 1.78 valves in the 302 heads. Id like to the the same test done with each step. Instead of going straight from 360 to "best effort" 302s go from 360 to stock 302s then work up the heads just to see what does what and where. I dont think I'm gonna fool with the 1.88 valves in my heads. ( unless I can find a way to cut new seats myself) but I am gonna port them. And depending on how much money I have when it comes time to start putting it back together I am gonna try to have them milled .02-.03.

Without bowl cutting and deshrouding the gains would be minimal, but WITH these mods, great gains can be had. There is a thread somewhere that posted the steps and gains, but I disremember-lol-where I saw it. (MoParts?)