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  1. 6

    Grear vendors

    I'm not sure about the mainshaft length. I didn't change mine. But the tailshaft adapter is longer than the original. I ended up with a 31inch center to center driveshaft although had to get one from the shop because mine was to thin. I had 1 from a 741 case and 1 from a 489 and neither would work.
  2. 6

    Grear vendors

    Sorry I meant to say I couldn't get the crossmember bolt holes to line up because the top of the tail house extension was hitting the tunnel. Also I think this is one of the best add on that I have done. I'm very happy with the performance.
  3. 6

    Grear vendors

    Hello everyone. I would like to take the time to telk you about my gv installation so hopefully it will help someone. So I installed this in a 69 barracuda. The process isn't that difficult bit of course nothing goes right First the tailshaft didn't want to come off, it was tight. Then the tail...
  4. 6

    Backfiring out exhaust

    Well I changed the plugs wires and the distributer and now it is running fine. Thanks for all the help!
  5. 6

    Backfiring out exhaust

    I understand some of what you said but would it still backfire if rotor is pointing at #1 plug and firing order is right? It ran fine before I moved the distributer gear but now it doesn't. I was thinking maybe distributor is bad?
  6. 6

    Backfiring out exhaust

    Tried it. Didn't work. Theoretically it doesn't matter as long as the rotor points to #1 and firing order is correct? The distributer has built in electronic ignition. Maybe it's bad? Idk
  7. 6

    Backfiring out exhaust

    So I decided to check the timing on my 440 in a 69 barracuda. I could not retard it enough because of vacuum pod so moved the oil gear to get more adjustment on distributer. Now can't get it to run without backfiring out of the exhaust. I pulled the #1plug and bumped it until ait blew out. Then...
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