I have been running the Accel Square top supercoil since 2002 I think. The plugs were already 2 years old then, and are still in the engine today. They were re-gapped to .045 in 2004, the last time I freshened that engine. They have over 100,000 miles on them at this time.
I have not looked at the gaps since 2004.
It would be interesting to see the gaps today, but that ain't gonna happen lol.
I love that coil, best I ever bought.
Delco Plugs for HEI Chevy's used to come pre-gapped to around .080; IIRC
