Saw a bone stock 73 304 have stock 360 heads installed. Valves hit bores on start-up. This was a repair for burned valves not for hp increase. I'd clay the pistons/block and grind for your cam. The valves will be shrouded on this small bore. Be better w/304 heads w/slightly larger valves, I've read about this mod but, can't remember the sizes used. amxron 70 AMX 70 Hornet 78 FSJ Wagoneer Fleet&JEEP Mgr Orbit/AMC-JEEP 50-1787 _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list