good discussion here. I have had the car on the road for a little over a year with the edelbrock carbs (750/800). I have used all the carb CFM calculators on the internet and talked to many experts and no one agrees what was going on. It was easy for everyone to blame compression or the POS edelbrock. So I took it out for a short 5 min run to make sure I got the carb all squared away after this happened.
After that short drive I believe it may come down to the transition circuit. Carb had a 6.5 PV when I received it and for that first drive that resulted in no pinging. With the more appropriate PV (3.5) given my vacuum at idle the car pinged again. Although, much much less than before the Mighty Demon went on the car. For the life of me I don't know how I could have solved it on the edelbrock.. I mean I tried everything except a bigger primary jet. If the mighty demon keeps working out so well we may never know ;-)
