318 popping in left bank header under load. Look at my plugs

I dunno man...I saw a 383 in a B body popping out of carb,and it turned out to be a valvetrain issue...rocker arm fell off pushrod...not shaft mounted. Ill never know what folks problem is with the shaft mount rocker arm system...
re read my last line.... gotta get fuel in before it can be burnt (air-fuel-spark)