engine rpm surge. help needed.

[Rapom]

I forgot to add this. When I implied that I looked at the distributor bolt adjustment gap.. I know that is spark timing only. I did not touch it at all. Besides that point. It's a fact that if you turn the dist to advance.. it will speed up base idle.. I don't think the ecm or isc or iac could counter that (this is a guess as I don't know on the gm junks, but on similar Chrysler junk this is the case). If you retard the dist by turning it the other way. The opposite happens. So my point was.. If .my dist was maxed out advanced.. that would account for the extra idle rpms that I was getting. But the dist was dead center so that's middle of the road to me... no immediate issues that need a timing light to correct.. If I did mess with the dist on this kick... as I may in the future.. I won't use a light anyway. Advance for more low end tq (loss of high rpm hp) and use a higher octane fuel to avoid spark knock. But this is not recommended by Suzuki and is not in the fsm . This is illegal tampering. (But works wonders on a trail when 3k rpm is more important than 6k rpm).. these are just ramblings and things I may or may not support or do.