D-Jet & NOT a Performance Cam Options

[brenz]

I have a 2.0 GA engine that was rebuilt by the PO (professionaly). Had CB Performance FI but was too rich for emisions in Delaware. Don't know if the engine was stock or not. Spent about a year going through the motions to get D-Jet installed and worked out. But it still runs rich. A friend, also on this site, is doing the same so been doing constant comparisons. His engine is now running properly.

Will save the long story - I've been through most of the common pitfalls with setting up this system and have replaced everything, from the obvious (fuel/vac hoses) to the extreme (new injectors). But keep reading and post a thought anyway. Maybe I missed it!

So now it's running strong but still really rich. Don't need a CO meter to know, it's pretty bad. Timing is at 27 deg BTDC. Idle is around 1200 at start up but sounds slow. Exhaust is clear but sometimes black at throttle. Tee'd in a vac gauge in the MPS hose and read 5" hg (should be 15"?). Response is normal at quick throttle, but goes back to 5".

Tested for leaks:
- Pulled all vac hoses and plugged ports at air box - no change
- Sprayed carb cleaner on manifold gaskets while running - no change

Adjusted timing to vac gauge to read 15":
- Idle really high, around 2700 rpm.
- Timing mark for strobe not even in range.
- Turned dizzy back to normal. Idle back to 1200 rpm
- AAR still not fully closed so plugged it. Vac now 3" and idle about 700.

MPS rebuilt from Fuel Injection Corp. and holds steady. Oh yeah, fuel pressure at 28 psi.
Symptoms point to a performance cam. Will map valve overlap using tire rotation on friends car this weekend and compare results to mine to be sure.

If it is an aftermarket cam, I would be interested in a possible trade for a stock 2.0 GA engine. I will be in Hershey. My engine has about 1000 miles on the rebuild. Or, if someone has an MPS that can settle this mess, I really want it!