Holding back on top end...

[teamitr]

I just did a 6bolt swap. everything seemed fine idle was super great so i go for a test drive and everything was fine until i decide to do a full thottle pull and it felt like if it wanted to go but something was holding the car back. sort off like when you run rich.
I tripple checked everything.
cas position
boost leaks
timing marks...
the only thing that i can think of is a bad cas or the tps not being set right, but I don't think the tps would cause that, would it?
The other thing that i think migth be causing it is that i just left the cas in the middle and turned it a lil counter clock wise. Now remeber that the idle and normal driving is fine.
Thanks for your time.
Danny.

Oh by the way is a 97 gst 5speed.

 

[romeen]

You might not be getting enough fuel causing you to run lean, getting knock, causing ECU to pull timing. How much boost are you running? Do you have a logger?

 

[jiggysnitz]

Sounds like knock to me. Use a logger to check and if you dont have one get one cause it will come in handy at some point anyway.