I didn't know where to put this, but I have a 7al2 part # 7224. It's a 4cyl only box. MSD says they can change it to work on an 8cyl for $35 plus whatever it costs to ship it, but if it's something really simple that will cost me $0.25 at Radio Shack, then I'd rather do that. It'd be quicker and cheaper both.
Does anybody know what MSD would change inside of a 7al2 made for 4cyl to make it work on an 8cyl??
This may not be the answer you're looking for, but I didn't think there was a difference between the two besides clipping a wire under that little round black cap for a 4cyl. I think it's only for the rev limiter though.
So in theory, if you re-solder that clipped wire, it should work for the 8cyl.
For $35, it's better to have it done by MSD. Better safe (with a running motor) than sorry (stranded on the lake).
I agree, if it's something very involved at all then for $35 why not send it off. I was just thinking if it was something stupid simple then I'd just do it myself. I guess I'll call MSD and send it to em. Mainly I was wanting to fire the boat up this weekend, and they say 5-10 business days return time.