mpg on my 340

@ AJ/Form /S

followed your advise.... changed the springs... the light brown ( stock Accel spring ) was changed against the orange one ( a little stiffer ) and the silver spring with the LOOP was also changed against a stiffer one ( GREEN Spring now )...
So the curve is a little slower...

@ idle I have 11 deg BTDC 24 deg Advance...and 14 deg from the VC on top... all together 49 deg. at 3500 rpm...

I also changed the thermostat... from 195°F down to 180°F...
Result : NO MORE PINGING...no pinging while cruising...and also no pinging under part time acceleration...

Thank you ! Your advise was a perfect solution for my problem

Greetings Juergen

Nice congrats, AJ knows his shiz lol. I bet that cooler T-stat made a big difference in reducing the pinging, what are your running temps now?

Alles Gute,
Khalid