Hey guy, glad to be part of the StangNet Community! I am an owner of an 06 E. My stock dyno numbers were 482 cool 455 hot/accurate numbers. My stock blower pulley (in case you didnt already know) is 2.87 from saleen. I have installed the saleen extreme ultimate cold air intake, a full 8-rib conversion with innovative west 15% dampner and a 2.95 blower pulley, and 60 lb injectors. After these mods, it was on the dyno yesterday for 8 hours and the best number i can pull off is 495 hot/accurate. Granted it was 95 degrees yesterday, we still were expecting to see somewhere around 520-550 on a hot day but i just found out today that the pulley is a little bit larger, we thought it was a 3". The guy i purchased my 8-rib from has the same set-up as me (with the exception of a 10% dampner and he built his motor, its not a saleen motor so the compression might be different, and his is an A/T which would show smaller numbers) and with the exact same setup made 16-18 lbs. of boost, 600 rwhp, and ran 10.70 on pump with the saleen blower. Im at 14 lbs, and 495. He claims im losing 100 hp somewhere but JDM says its about accurate numbering. This isnt setting well with me; i was expecting more than a 1/2 lb of boost and 30 hp. I was expecting/hoping to get those gains just with the tune. The car runs good and makes clean pulls, air/fuel is great, there is no belt slip, the timing is at 15 degrees, and the gear ratios look good (no clutch slip). Anyway my questions are: 1) do you guys think this is accurate, or should i be looking at bigger numbers? 2) i have the option of building an 8 rib pulley to any size, if i have one built at 2.87 (standard saleen sizing) i will have to machine the S/C snout down about the thickness of a penny to make the pulley fit. At what point will i be over-turning the supercharger? (dont forget that i've already added the 15% dampner) 3) any other suggestions that would help me gain numbers, without going whipple or rebuilding the motor for bigger compression? 4) what CAN this motor actual handle? i hear "620 safe" from people all the time, but how are guys actaully making numbers like that with the saleen blower? Have you guys heard of 15+ lbs with this supercharger? When making minor adjustments to the spark/fuel, the car goes down in HP and up in torque. Right after a pass at 495, we added spark and the car went to 492/501tq when expected to go to about 505 rwhp; kind of odd. JDM says i need upgraded vacuum lines, ford racing throttle body, longtubes. I have heard that longtubes dont make a difference other than sound on 3v cars, and the throttle body is a waste of money because the motor already gets enough air. JDM also says that im not going to get much more than what im at, but contrary, i hear about E guys making 600+ all the time with stock set-up, and im over here modifying away. What am i missing here?