OK...it started pinging a week after installing the whipple. In Alaska, we only get 90 octane fuel..yeah I know it sucks...but that's life...Anyway, I talked to Allen and told him of my pinging problem....symptoms:

Under light/med throttle, Aftershifting to 2nd...it lightly pings...almost sounds like a tick tick tick. If I take off from 1st hard..I get no ping.......If I'm cruising around 40-50 in 3rd or 4th and hit the throttle a little...it pings...If I nail it ...no ping....

No octane booster and it pings worse. With Octane booster it pings less. I even tried $23/btl TORCO....still pings but not as bad.

Just got my tune back from Allen...and the ping is much less but still there around 2k rpms.

I just thought about something else...spark plugs...I followed Whipples' instructions and got AC/Delco Platinum tip 41-932 plugs..$50 for a set!!........Could the plugs be creating a problem...everyone says use NGK TR6....should I switch??

I also just got the wideband from Allen and will install this week. I think I'm running a little lean around 2K RPMS....but the crappy NB autometer I have is not dependable (but it does show lean in that range and it shows in the stoich region when it's pinging).....

Any other ideas??