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Thumpin455 · 05-03-2008, 07:30 PM

If you have an MSD ignition and you are fouling plugs, you should check the resistance of your plug wires. They should have less than 18ohms resistance, if they are higher replace them.

Also it sounds like your carb is dumping fuel, and your valve seals are shot. Hence the abundance of oil and fuel on the plugs. Could be time for a rebuild on the 400.

Last thing to check, make sure the power wire going to the MSD is a full 12v, if it doesnt have 12v you need to run a wire to the ignition that does.

05-03-2008, 07:30 PM	#2
Thumpin455 My truck is an alcoholic Join Date: Nov 2007 Location: Marquette Mi Posts: 303	Re: End Of Rope /please Help If you have an MSD ignition and you are fouling plugs, you should check the resistance of your plug wires. They should have less than 18ohms resistance, if they are higher replace them. Also it sounds like your carb is dumping fuel, and your valve seals are shot. Hence the abundance of oil and fuel on the plugs. Could be time for a rebuild on the 400. Last thing to check, make sure the power wire going to the MSD is a full 12v, if it doesnt have 12v you need to run a wire to the ignition that does. __________________ Too much stuff, too many projects to list everything. my 454 urged 76 swb beater