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Old 10-25-2003, 10:48 AM
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Help with purchase of New MSD HEI Distributor

Can someone please tell me the advantages or disadvantages of "coil in cap" style distributor. I am switching to a HEI MSD mechanical advance distibutor for my Mallory Unilite setup.. I have always had problems with my photo sensor lite on my Mallory so I am headed to Summit to end my Mallory Days for good....... I would like to run "coil in cap" style if possible so I could clean up the engine compartment. My RPM range is 3000 to 6500. Street driven SBC with 530 Crank HP. No racing........ Thanks for the help........

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Old 10-25-2003, 11:54 AM
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Hi 66, just wonderin' what kinda problems you're having with the Unilite. Been running mine trouble free for over a year now and know have run into others at shows also happy with their Unilites. When I finally decided to switch to electronic after years of running duel-points I actually ordered an MSD distributor first because of the reputation behind the name and was totaly dissatisfied with the workmanship. I returned it to summit and they sent me a replacement. I took it out of the box and was able to rock the shaft back and forth in the housing worse than most beat-to-death worn out distributors I have replaced. Summit then sent me a Unilite which, while holding with everything I had, had no side to side movement at all in the shaft. So whatever you do if you buy a new distributor make sure you check it good before installing it.

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Old 10-25-2003, 12:30 PM
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MSD has great technical support and questions get answered very promptly, even on most weekends.
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Old 10-25-2003, 12:55 PM
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I like the Unilite better myself. If it burnt out, you have other electrical problems somewhere else that still need to be fixed. I would go through and check that you're distributor, block, body, and battery grounding continuity is good. Do does some pretty funny things if it doesn't get a good reference to ground. Frying your Unilite isn't funny, but can be an example.
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