What suggestions do you guys have on an aftermarket flywheel for a 428? Also my engine doesn't have a harmonic balancer just the crank pulleys. I assume even though it is externally balanced it should still run a harmonic balancer?

 

I have a McLeod in mine. Yes, you should have a harmonic balancer. They do different things. One replaces the need to balance the crank, the other addresses the vibrations set up by the engine firing and pushing on the crank.