Some other things besides timing to think about, from a page about MP Electronic Ignition: High speed miss 1. Check for loose connections or poor grounds. 2. Check for dirty or worn spark plugs. 3. Check for faulty spark plug wires or poor connections on new wire sets. 4. Check the battery voltage at the ballast resistor. It must be no lower than 12.5 volts. This is especially important on cars with alternator cutouts or cars with no alternator. If the vehicle uses an alternator cutout, teat the voltage with the alternator turned off. http://www.geocities.com/MotorCity/1002/ignitconvts1.html Thanks, Gary H. -----Original Message----- >Rich Kinsley '64 Dodge Polara 4dr 318poly w/goodies > >I did run my car up to about 5200rpm once and it missed a few times. I'm >wondering if my ECM has been damaged from the previous bad electrical? >Dodger thinks that it may just be timing. I'll be going back to the dyno >in a week or two and I certainly want it right before then!!!!!!! > ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.