I am dissapointed with my dyno results last week and could use some advice. I just put in a teksid block with .30 over forged pistons with a 10cc dish (supposedly 10:1). I also at the same time put on a set of stage2 ported heads and upgraded the sq trim to a si trim (slight upgrade I know). I have a 3.1 pulley and am still 6 rib with the factory crank pulley. I made 477whp before these changes and only made 483whp after!!! Now I will say it was around 30* the day it was dynoed and they had problems with wheel spin at peak torque and could not datalog boost. I don't know if there could have been belt slip as I wasn't there but it seems to make 14lbs ok on the street in lower gears (havn't been able to do a 4th gear pull on the street). Dave Guy tuned the car at SGS so I know the tuner is good. He said he put 17* of timing in it and the af's were solid at 11.8. He said he would have expected more out of it as well with the mods I listed but it is what it is. He suggested throwing more boost to it which is what I will probably do. I guess what I really want to know is what pulley setups you guys are using with your 550whp+ s trim cars to get that power. I know most of you are using i/c and not meth so you are probably spinning the blower faster to make the same boost, and maybe thats part of my problem. Let me know your thoughts and if you need any more info about the car if its not in my sig. I am still using the factory updated plastic intake mani, hp blower cams (regrinds). The motor had about 100 miles on it when it was dynoed and about 200 trouble free miles on it now. It does feel faster then it did before but honestly it was fall when the stock motor took a poo and its obviously much colder out now and I can't get traction to save my life. Too much salt on these cold roads still. She steps sideways at peak torque in 3rd gear and I am running nitto drag radials on 15" drag wheels with a drag suspension setup. Sorry about the scattered info, I'm just frustrated after spending another 7grand for 6whp (in a way). Thanks in advance for the help.