Ok, someone asked to see the complete run down on my time slip so here it is, along with the original post. My gut feeling is still the timing, can someone explain in detail how to do it? Before I adjusted it, it was at 30 degrees advanced w/ computer controlling it. I adjusted it to 6 degrees w/o the computer controlling it. Once I let the computer take over, it goes to around 2 degrees advanced.

89 IROC-

R/T .827

60' 2.241

330 6.488

1/8 9.951

MPH 71.26

1000 12.936

1/4 15.471

MPH 88.58

Here is the original post incase anyone didn't see it..

"Ok, I have an 1989 IROC with a 100,000+ mile 350, with TPI setup. It has a rebuilt 700-R4 with corvette servo and a wider 2-4 band. 3.23 or 2.27 rear end gear in back, which ever it is, I can never remember.
I have new spark plugs correctly gapped, new ignition wires, new cap, new rotor. Fuel PSI set to 47 PSI, Throttle Body cleaned... has an air foil in the throttle body and a home made ram air setup. Also has a gutted MAF sensor, with wire still intact. Ohh, yeah, and an open cat, which I have been driving on for about 3 months.

It also has some type of computer problem w/ something, when I start it up, it stumbles for a second and then idles at about 900 RPM, when I first shift into reverse in the moring, the tranny will enguage and begin to roll but the engine will stumble again down to about 300 RPM until I tap the gas and it returns to normal. What could this be?

Sometime over the past week, I have begun to notice a huge lack of power under 2000 RPM. If I slam the gas from a stop, the engine bogs and then slowly takes off. Sounds like a timing issue to me, but I have adjusted it with the computer controlling it and it not, neither seems to work. I set the base timing with the computer not controlling it to 6 degrees.

My first and only run with the car was a disappointing 15.471. 87 octane gas, engine temp was around 200, the outside air was about 45 degrees. Tires didn't spin at all, didn't have the power to do it... any ideas?"

Thanx guys...

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Owner of a 1989 IROC-Z Camaro, a.k.a. "The Babe Magnet". Painted a cheap metallic blue that chips off all too easily and covers over the IROC-Z decals on the doors, also has non-leaking T-tops, ps, pw, power rear hatch, working A/C. Mods: SLP intake runners, gutted MAF sensor, adjustable fuel pressure regulator, modified air spoil, 3.27 posi rear end.
Broken stuff: rear spoiler brake light, driver side lock, power antenna, tilt steering, rear end bushings, cracked passanger side ground effect, washer fluid tab, leaking exhaust and a rotted through muffler that sparks when the car bottoms out while driving like any 17 year old does.