Just curious if anyone else out there ever experienced the same problem. Basically, when at WOT in 3rd and higher gears, I get this "pulsing" feeling of acceleration. The car will go forward in pulses, like a heart beat or something. I gapped down my spark plugs to .034" last week hoping that would fix it but it didn't. I'm probably going to get my car dyno'd in a few weeks once year-end is over but would still like to try and find out what is causing this before I go in. I've got the boost set at about 14 PSI and it never did this before I got my APEXI AVC-R II boost controller. It seems to run fine in 1st and 2nd @ WOT, but when I get into higher gears, I can definitely detect the weird on and off pulling feeling. I'm thinking it's either got to be the fuel system or maybe a bad cylinder, however I'm leaning towards the fuel. Thanks to anyone who might be able to help me with this!!