Whatever brand you buy, get a top of the line set with true rollers. When we built my Son's 455 4 years ago we were in a hurry to get it together and simply bought a readily available Summit brand double roller setup. Never started the motor in 4 years. We just went through the motor and redid lots of things and noticed a lot of slop in the new, never run timing set. Ordered a brand new Cloyes setup that cost about $ 150 vs the original that cost about $ 60 and the difference is dramatic. The new chain has zero slop and the rollers are true rollers.

This is one area where you get what you pay for.

Don