Quote:

Quote:

I ground my neg. to the frame and run a ground from each aluminum head to the side of the aluminum block then to the frame again per MSD inst..



This is the only way you want to do aluminum headed engine with a nasty ignition....Each head must be grounded....Otherwise the coil wire will arc to the head or anything close to it.


the primary reason both heads are grounded is for the spark plugs. Composite head gaskets can reduce the quality of their ground.

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