95 gst back firing question...

when i drive the car with out getting into the pedel, it drive great.. but the second i put my foot into the pedel and hit 10-12psi, the car pops a 2-3 times and then it stops.. i dont know what it is...
the mods i have on the car r just turbo back exhaust and intake.. well my motor was ballenced.. could it be that i need to get my air/fuel tunned??? what is the stock boost on the 95 gst??? it sometimes at 9 sometimes at 12.. its different all the time... thanks

It only happens when you are flooring it, or when you let go of the gas pedal?

sounds like its misfiring. Check the spark plugs and wires

only when i floor it, and hit max boost..

i can check the spark plugs, i just put denzo uridums in it..  but how do you check if the wires r good

pull out the wire and see if the metal looks rusted or chipping. So does it feel like your car hits a wall, like really hard, or is it just a mild bogging

its very mild bogging.. i just checked my plugs those r fine im guna check the wires
 

i found out what it was it was the spark plug gap.. it was around 50and the recommened is 28.. and i just drove the car and it runs great.. thanks

ah...that would do it

WOW that's... a problem lol