alright, SO i have an 87Firebird formula and here is a list of work i have done to her(With-in the last 400miles), New cap, rotor, Plugs, Ecu, Adusted TPS, New oil,Emptied cat(cloged really bad didny have money for new one.), new MAF, Air intake(Not a cold air intake it suckes up the hot air from engine but it breathes better than stock, and i ran seafoam through the gas. So here is my problem..or schould i say problemS, Alright for the first prob, After around 3800-4000rpms she does not "Pull anymore" and right around that rpms she starts makeing this "Poping or clicking" noise, it kinda sound like it is back fireing through the Throttle bodie. and my last prob is she has a rough idle.
Any ideas, I just bought a Fuel filter but i havent put it on yet.
Please help.

 

Anyone???

 

Have you made sure your timing is set properly?

 

Ya, i just recently had it timed...but i could be off still.

 

Is the CAT still full-o-crap?

 

Nope. Got all that crap out. It was cloged really badly. and did not have the money to fix it..or at least get a new one.