I have headers, k & n's, and a gutted maf sensor, plus new wires, plugs, and all that stuff. My question is, is there something else i should do to gain the full benefit of the headers? Would a relocated mat sensor do it?

------------------
1989 Iroc-Z TPI 350 auto 4-spd Removed MAF screens K & N filters, Hedman smog shorties, accel 8mm wires, made for you wire looms.

 

You should get a good catback to increase your exhaust flow. Stock exhaust on 3rdgen are very restrictive. Go with a flowmaster or hooker if you want sound. Dynomax ultraflow offer better performance, but they're not very loud at low rpm.

------------------
89 L98 GTA
- Custom made air induction
- Headman Hedders (t.e.m.s.)
- Dynomax Race Magnum muffler
- TH700-R4 with vette servo and Superior shift kit
- All the rest is stock

 

oops i knew there was probably somthing i forgot. I have a cat back exhaust and a gutted cat. I know with carbed cars you have to richen things up a bit to gain the max. So is there somthing similar that i need to do with the tpi? afpr?

 

I was just logging in here to suggest the AFPR, invest in a fuel pressure gauge too...check the pressure before you ou the AFPR in, then you know where to start from.

You'll get a good idea of the best fuel pressure setting at WOT, by watching the O2 millivolts...you'd like to get'em set in the 890-920mv range, a scanner is useful here, but there are some inexpensive (less the 30 bucks) monitors that plug into the ALDL to read the O2 sensor voltage. Not sure if you can read the O2 voltage throught eh ALDL with a meter though.