I have the LE 1 heads/cam package with 42 lb/hr SVO injectors, once this went onto my car it was ran for 30 minutes with stock programming. Then this car was physically driven around the block a few times to make sure everything was in good working order. After this the plugs were all fouled out due to it running way too rich, as 93s with stock programming do, so the plugs were cleaned and a switcher chip was installed the car but it was on the wrong bank, so the car was pretty much ran in fail safe mode (when the SES light comes on and the fans kick on, etc..) but I was told that this car was driven after this. (This was all done by the engine builder on the car and is just what I was told, besides the car going into fail safe mode, which I just figured out on my own.) Now I have found the banks that the programming is on from the mail order tune and after cleaning 5 out of the 8 plugs and reinstalling them (and at this point I have put the stock 24 lb/hr injectors back in, because I wanted to make sure that those used injectors I bought were just stuck open) I tried to fire it up last nite, the car did fire on the 5 cylinders for about 5 seconds, but was still running rich and the car just backfired hard out the exhaust this time. Then I tried it again and it fired again but it only ran for about 2 seconds and backfired through the intake. This went on a couple more times and then I pulled the elbow off and there is gas all in the throttle body. This is quite confusing to what is wrong with the car here, if the programming is fine as of now, that should mean the a/f should be OK and runable (at the least), It seems like the timing is off, causing the backfiring and stalling out, but if that is the case, how was it possible for the engine builder to physically drive the car a few times, and also run the engine for 45 mins? Another thing i'm not quite understanding is why I can't even get the RPMs up once it fires, cuz soon as it starts and jumps to about 1100 rpm, a couple times I tried to give it some gas and the car didn't rev at all, but instead just backfired even harder and stalled the car out. I pulled a plug out and it came out completely black and soaked in gas, similiarly to what was happening on stock tuning. The other thing I was thinking about was maybe it is the fact that it is missing on the other 3 cylinders, but shouldn't the engine run on the other 5 cylinders? Reason I didn't clean all the plugs out is because they keep fouling out right away and I was hoping that it would run on the 5 cylnders enough that I could drive it into the garage where I could actually jack the car up, as of right now it took 4 of us and a running start from the other side of the street to push the car up onto my driveway (my driveway is a good 65* upward incline) and I can't jack the car up on my driveway on this incline...

 

I am not to familiar with how the opti spark distributor works exactly, but if the plug wires are correct, is it possible that the base timing is off on the distributor?