Misses under load

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Misses under load #1465667 07/09/13 10:58 PM 07/09/13 10:58 PM
Joined: Nov 2007 Posts: 1,522 Orleans, Ontario moparcanuk OP pro stock
moparcanuk OP pro stock Joined: Nov 2007 Posts: 1,522 Orleans, Ontario	My 69 440 Six Pack was running great then all of a sudden, it started missing under load. Idle and revving in neutral is fine. As soon as I put it in Drive, it starts to miss. I checked the wires and did a vacuum test. Everything fine there. Suggestions?

Re: Misses under load [Re: moparcanuk] #1465668 07/10/13 01:35 AM 07/10/13 01:35 AM
Joined: Jun 2004 Posts: 3,319 Chicago Burbs sthemi master
sthemi master Joined: Jun 2004 Posts: 3,319 Chicago Burbs	Start with the spark plugs. just replace them.. everyone has a favorite.. I like Autolite... could also be, a bad wire, or the coil could be arching from the primary wire to secondary wire... (replace coil). It takes more voltage to fire a cylinder under load. Video Little Red Wagon Indy Nats,BurnoutContest

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