Advance/Timing WTF

[jcd9730]

I decided to fix my timing today, since the mech. advance doesn't work at all (stuck or something). It was running smooth and pulled hard, but I got horrible gas mileage. Like 7mpg going easy.

So I followed the timing guide in the FAQ to a letter. Got the advance kit and adjustable can, and worked my way from the lightest weights to the heaviest, and every possible combination and methodically adjusting initial timing (keeping it around 38-30 total advance) and testing on full throttle runs.

Its now been 4 hours of this, AND IT WILL NOT STOP PINGING. Well, it did with one setting, but as soon as I plugged up the vacuum advance it did, and no adjusting that would stop the pinging at full throttle (ran good at part, or when slowly increasing speed, but at full with vacuum advance it pinged bad)

This working perfectly fine this morning, just with terrible mileage. Now trying to 'fix' it, I can't get it to stop pinging.

Its an Accel HEI, thats kinda old and dirty, but looks ok and ran great before I tried fixing the stuck mechanical advance.

WTF. Im getting pissed. This was SUPPOSED to be quick and easy