Breaking up Badly!! Help!

[crxp-o-s4now]

So I recently had my 3" turboback installed along with an Aeromotive AFPR. (Don't know if that's helpful info or not but anyways..) My car has been starting to break up badly around 3500r.p.m's on until i let off throttle. It's not fuel cut..because it feels like my car is dragging along everytime i press the gas pedal. The problem has gotten so bad as to where I can't pass cars anymore because getting on the gas doing anything past 3k rpms is almost impossible. Also, I'm not sure if i have my MAF-T setup for the proper settings for 510cc injectors..

I almost 100% positive its not fuel-cut.
I DO BELIEVE it has something to do with spark/timing.
I have already gapped my spark plugs and found LOTS of carbon build-up on them..

Any ideas as to what is going on??

Thanks in Advance!!

 

[andytalon]

When theres a boost leak you better fix that before even doing anything. Think of a boost leak as being sick. It wont get better unless you help it. Fix that because most likely you have a ton of little leaks cause one big problem I do a leak test every week, but I also run 19psi. But make sure you can hold 20psi when you pressure test it. It must be able to hold it and not loose any pressure. Good luck.

 

[talonracr19]

question on this subject, what steps do U go about leak down testing?

 

[crxp-o-s4now]

question on this subject, what steps do U go about leak down testing?

If your talking about a "boost leak test," http://dsmtuners.com/forums/showthread.php?t=209898&highlight=boost+leak+test

If your talking about an actual leak down test..a.k.a the thing after the compression test...I'll look for that link now.

edit-here you go http://www.dsmgrrrl.com/FAQs/leakdown.htm