Alum tubing extensions... best idea ever on reversion. Thats exactly what i had to do. Nothing else worked.

Always had severe reversion, even though had stock 502mpi's but with Eddie Marine alum log type exhaust, advanced timing to 35degrees at WOT, some roller rockers, and air filters. Changing the timing never helped the reversion.

Now have no reversion with the tubing.I ran the alum tubes all the way to the end of the tails and slash cut them. Tip of the 45 deg cut is at the end of the tail.