I’ve got a set of 78 596 and the 90 302 heads on the 318 atm. Can be rebuilt Bone stock or home ported, but both using existing valve sizes. I have my thoughts on what I’d run, obviously the 596’s, just also humoring the idea of the capabilities or possibilities of these 302’s optimized for the above scenario. Pros/cons of either head if either were the only heads one had. :steering: