[1975 camaro guy]

thanks for the vidio.i dont hear any tapping in the head.it acts like its out of time or maybe a burnt valve.but ive never had one of these things, so i dont know what to look for.ill check the timming and the valve clearence and get back to u.found a guy down the road that works on these things,if nothing works ill have to go see him.thanks to u again.