I am having some pinging issues on temporary 389 in my 67 bird. Along with the pinging I am getting hot too. Both high speed and idle. Working through the timing issue, i have found some great information in regards to timing. There also are several good articles in High Performance Pontiac. pm me your email and I can send them over if you want. i just changed to an adjustable vacum advance set timing. havent driven it yet.