Switched to HEI

So I finally took the plunge and switched over to the GM HEI module. I have to say, why didn't I do this earlier? I got the little aluminum adapter plate from Mopar HEI Conversion and an AC Delco D1906 module and a HEI e-core external coil and hooked it all up yesterday in about an hour after making some wiring harness modifications. So far, I'm very pleased. I didn't get around to re-gapping the plugs yet. Is it worth it to re-gap the plugs? Or even get different plugs? I'm running Champion RN12YC plugs right now in my SB 340. Just wondering what other people did who made the switch.