You can put bigger valves into 302s. I wouldnt, but you could. I like to run 2.02s with 360/340s, but not everyone does. I also would want the larger base port size. The longer stroke of the 360 IMO will make the smaller 302 design too restrictive over 4500rpm. I'd run the factory 360 head, clean them up, and add the 2.02 intakes. The M1 is going to make more hp, but not as much torque as the AG does, and the AG will do it at a lower rpm. I dont thin the Tquad will fit the AG without an adaptor tho.