Pop pop on exhaust side

Chadderbox70 said
My MSD blaster 2 Coil was weak
Once I swapped it ,instantly stopped missing, and I was able to get the timing back down where it should be.

Yep, I have seen that exact same thing with a pulley change on the alternator not allowing the CDI to fire correctly causing what can be misinterpreted as a rich condition.

Half a volt was all it took to make it change the burn considerably.