Quote:
Originally Posted by taktikian
62 what did you use for switched 12volt ? I assume the tach lead could be from the coil. Am I correct?
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Yes, tach lead from the coil. Switched ignition can be tapped off any wires that get 12v with the key in the run position. In these era GM cars, that will be the heavy gauge pink wires on running from the ignition switch. Another option might be an ign output on the fuse panel, but test with a meter to be sure you get voltage when needed.
The reason we used this setup was the RA4 cammed, iron headed 468's modded quadrajet was running lean as soon as the secondaries opened up and would lean out so bad by the middle of 2nd gear it would fall on it's face and cut out. After going elec pump, regulated at 6psi it was like a whole different engine in all regards.