Jasonz28camaro

I just got my new tune back and I seem to have lost top end power. After I hit 55 the power seems weak. I also have a lot of popping out the exhaust when I let off the gass. Any ideas what my problem may be? In addition to the mods in my sig I have the lt4 KM. Another thing I was wondering about is, wouldnt you think I could get a 3rd gear scratch (im not) with those mods and a tune?

chy20k1

i used to chirp 3rd in my friends basically stock 5.0, you should definately chirp 3rd.

Jasonz28camaro

No one have any ideas how I can track this problem down. I'm getting so frustrated trying to fix this thing. Any opinions would be greatly appreciated.

Red96Lt1

I would think that you should be able to chirp with just 4.10's.

med_reject

sounds to me like you are either going too rich at the high rpms. Its also possible your spark plugs are on their way out.

popping means you ahve unburned gasoline making it to the hot cat/exhaust.