please help!!!

[Team_Unknown]

hey guys im having a problem with my car. it is a 1991 eagle talon tsi awd. when i floor my car from 2nd gear and switch to 3rd gear it lags like a second or so and start pulling hard again. ive been having a problem with my car too because my idle would move from 1000 rpm to 2000rpm after 15 mins. or after racing. and i would have to adjust the throttle screw. i change MAS. and it still did that. so what im thinking is i have a bad isc. or throtle body. Also my car pops sometimes in around 6,000 to 7,000 rpm. do u guys think it means bigger injector or an aftermarket afpr and is that sound means more fuel to be add on or lean it? please give me a suggestion dsmer's.

mods:
2 1/4 uicp
dejon tool 1g intake pipe
k & n filter
hacked 1g mas
evo 16g = 20psi
2 1/2 custom made exhaust and downpipe
2nd gen manifold bored out by tre
slowboy racing tubular dump tube o2 housing
450 cc injector
190 walbro fuel pump
1g none turbo apfr
s-afc 1
timing advance to 5 degree
magnecore sparkplug wires
ngk-r BPR6ES sparkplug

i have 9 knocks and timing is at 21 degrees after 6-7k rpm, smells rich but never checked o2r voltage yet. working the sh*t out of my 450 cc injector. low fuel trim is at 139% and the mid. and high are at 100%. need to check throttle responses. coolant and temperature is fine. my isc seems to tweak a lot 15% at idle, dont know if it suppose to be 0% at idle. I am using a mmcd program for this information.

thanks,
yer

 

[Team_Unknown]

can anybody wise help me on this? i really need help

 

[PieTSI]

First off, turn down your boost. Second off upgrade your injectors if you want to keep running 20psi. Third, I would try testing for boost leaks. To make a leak tester go to www.vfaq.com. If you are having a problem with misfiring...make sure your plugs are gapped correctly, and again check for boost leaks. The slow spoolup is probably caused by a tuning issue, you car is running rich for a second then starts to run lean. The rich condition can be caused by another tuning issue, or a vented BOV.