rpms drops when I stop

[sonicstyle]

I just recently installed MSD 6A Ignition on my 2002 S10 4.3L., I have everything stock...It used to idle at 600rpm....I runs great, until I come to a complete stop then it just idles about 400 and dances up and down...seems like there is a missfire of something...am I missing something from my ignition kit..thanx

[msdtech2]

Checks the plugs wires for arcing, and also if possible check fuel pressure, it may be possible with the fuel pressure on the low side, it may be a lean condition. The idle surging may be the ECU trying to compensate for RPM drop to keep the engine running.
Thanks,
msdtech2

[sonicstyle]

I checked the wires, they are all fine. I really don't know how to check the fuel pressure..?

[sonicstyle]

Also, my spark plugs at set at .060 did I need to regap them???thanx

[msdtech2]

If the factory gap is .060 then you should not have to regap. The fuel pressure is checked through the fuel rail. There should be a shrader valve where you can connect a fuel pressure gauge. Consult the manufacture for the fuel pressure specs.
Thanks,
msdtech2