If you have MSD...what are you gapped at ???

[SwaveDave]

I gapped the plugs at .044 " as MSD says you can go wider than stock. (.035 is standard). Seems to be running ok. Has anyone played around with the plug gap to see what works best ? Curious. Thanks.

S.D.

 

[1979toy]

I left my plug gap at .035 when I increased my compression ratio and added an MSD-6. I suspect that you won't notice a performance change until you get to an excessive change one way or the other or put the engine on a dyno.