Car running like sh*t! HELP!!!!!!!!!!!!!!

[RedEvil]

Ok, I put a new headgasket with arp head studs. The car pulled hard at 15psi but one night I stomped on it and I felt the power go down the drain. The car idles like s*it and it spools fine but it has no power at 5k plus. It can't be the timming or the ignition system ### the car was running fine. I changed the spark plugs with new NGK, checked the cables and they have the right amount of resistance, swapped the power transistor with another one and it did the same thing, checked timming and is good, injectors are cliking and have the right amount of resistance, plugged all the ports from the emissions on the throtle body, did a compression test and it has 150 all across, checked turbo shaft play and it doesn't rub anywhere. I'm running out of options. I'm thinking I must of ran the stock 14b too hard and maybe it might be out of steam but theres guys here running them way harder that just 15psi.WTF Ichecked the hoses that run from the turbo to the throttle body and they are fine. I have the stock blow off valve but I just bought it like a year a go from mitsubishi. Anyone else have anymore ideas! Anything that might help!!!.

 

[dsmpat95]

Did you check for a boost leak.

 

[eagle_talon90]

+1 on the boost leak test, the 14b can handle 15psi pretty easily. I ran 15-16psi on mine for about a year with no problems. But now with the stroker motor i got i can't put her over 14psi or else above 4K she just falls on her face.