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Coulda, shoulda,woulda .......... didn't ......................... DAMN !!!! 120-130

posted by  Phil S. on  Thu Apr 10 13:51 CST 2003
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last visit: Fri Oct 24 13:18 CST 2014
[RELATED]

Brett, here's how I ran mine towards the end:

With a centrifugal-only dizzy, basic timing at 14 BTDC and full advance around 37 BTDC. Gradually bend the tabs that hold the outer end of the springs under the breaker plate outwards to delay the onset of the advance until you get no pinging in the midrange (or anywhere else, for that matter). You can get at them with needle-nosed pliers through the holes in the breaker plate by turning the motor.

DX needles in the SUs... I had KDs at first, but they ran a bit lean in the midrange. Tune for best idle and find the rich edge of that, just short of the point where the rpm starts to drop.

Colder plugs (!). NGK BP7HS is the stock heat range for an E motor, not BP6HS. If you're going to run it hard, go a step colder yet to B8HS (I can't get BP in that range here).

Valve lash .015" HOT. (It's a D cam)

This gave me quite acceptable performance on 92-octane.

BTW, this was just an unknown motor out of a '71 142E junker. I'm going to reuse it in our Amazon. Might put the D-jet back on it... still contemplating.






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