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Thread: MSD 6AL box question

  1. #11
    Registered Member chasracer's Avatar
    Join Date
    Mar 2018

    Member #:3718
    Sent you a PM.

  2. #12
    Registered Member
    Join Date
    Nov 2015

    Member #:2764
    Rick, I appreciate your help. In the scenario I gave I did indeed have the vacuum advance disconnected. With the amount of timing advance it has I am baffled as to why the engine doesn't *buck* when trying to start it and why it isn't pinging. Just now I rechecked the timing with the vacuum disconnected and plugged (although I don't see any need to plug the vacuum hose unless your engine won't run with the vacuum leak). The initial is 22° advanced and the total is a whopping 50°. Two different timing lights both give the same reading on the balancer on the tape, not using dial back. That centrifugal advance shocked the shit out of me, but it ran great and didn't knock or ping. After some thinking, I believe the centrifugal is so high because I borrowed the advance stop bushing for my other distributor and forgot to put it back on this one. I'll be back in a few days.

    1955 Bel Air Sport Coupe

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