ok so I ended up using all four shims, and spacing was ok, with some variation, I ran the vehicle all good, no weird noises, so took it around the block and down the street, didn't run right, felt like supercharger wasn't working right, maybe like it was engaged the whole time, and even though i turned off the traction control it started engaging and flashing at about the same rpm the supercharger should have engaged, so i pulled back into my garage, took a look under the hood, and i have no gap, it's completely gone. So am I to assume i need more shims? and realign it again? maybe the pulley wasn't all the way back at the stops when i installed it? maybe something was off with the pulley and now that i ran it the pulley is right but my gap is set wrong?