Stop in for a cup of coffee

Ddaddy said

The ECU also controls advance electronically. When they go wonky, they can pull the timing or make it jump all over the place

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Not seen any of the normal Chrysler type ecu that are supposed to effect timing. Later sixes I'v seen with seperate unit. Going wonky - I'll trust you've had them go that way. Mine have either just died, or died when hot...