Plugs are plugs when running an MDS or any other similiar unit. I always used the #75 Autolight (better then the 85 - only need them for a radio) US made is why I use them - never had luck with Champions. NGK and Accel plugs worked just as good - so I go for the least expensive. In 1999 I never changed my plugs all season in the (head hung low) lost but not forgotton 69 Bird.
The only problem with running Autolights in the dragster with a Vertex Mag is the .20 gap makes the electrode on too much of an angle - may try Marks idea - I just hate messing with electrodes
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www.spottsperformance.com
East Coast Pontiac engine builder - still going strong
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1981 Trans Am 455 w/6X heads 4 speed 4 wheel disc (for sale)
1969 Trans Am clone 9.79 at 139 so far
1964 Banshee clone project - Opel GT platform
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