Gold Phoenix

iTrader: (1)

I am trying to do a N/A tune on my 402. It has TSP "Giant Cam", Dart heads ported by TEA, 8.6:1 CR, and factory LS6 intake. So far the tune is OK, but I am having some trouble. I set the idle speed to 1000rpm since it idles with only 8-9 in/hg. I am having some stumbling between idle and 2-2.5K rpm. I have been getting the MAF peformance error, but I know that is from the lack of idle vacuum. I am not sure how to go about correcting the stumble.

1320FEVER

iTrader: (9)

It just sounds like your VE table is not dialed in yet. Time will take care of that as long as your running a closed loop tune.