Car Running Rough After Rebuild

[Horizon200]

So finally got the motor back together and on the road.

But, it is not running quite right. It backfires occasion (almost like it's loading up) Smells rich. Acts like it has a misfire and doesn't come on strong at WOT like I had imagined it would.

Here is what was done and where I am.

302 with Mass Flo
new 30lb injectors
new E cam
Edelbrock Performer heads
1.6 roller rockers
new 255LPH fuel pump
New plugs gapped at .35
Chris Richards reflashed and chipped the computer for the above set up.

Timing is set to 14 degrees BTDC
Fuel pressure at 39 with vacuum off (32 on)

I'm still using stock ignition.

Right now, I'm thinking new cap and rotors and new plug wires to start.
Any other thoughts?


Thanks

[Gordon Levy]

Firing order 1-3-7-2-6-5-4-8 spinning counter clockwise. Check this first

[Horizon200]

Thanks Gordon...yes firing order correct.

[bstuke]

Put your old injectors back in.

[Gordon Levy]

Check the EFI ground on the back of the injector harness.
Check the salt and pepper shakers

[Horizon200]

All tight Gordon.

[Horizon200]

I think I found the major malfunction...though I'm not convinced I'm on timing either.

I replaced rotor and cap and decided to regap/check the gap on the plugs. On cylinders 2 & 3, the insulator on the plug end had come loose and was resting against the electrode thus essentially eliminating the spark. The plugs were clean as if they had not been firing. So, that explains the miss. Other plugs look fine. Light Brownish color.

So, with proper operation of the plugs (the brownish color) but still strong smell, I am thinking timing is not where it should be? I'm shooting for 14 BTDC but had a buddy set it while I was in the car. Going to recheck that next.

Ideas? Am I headed off on a tangent?

Chris Richards said to give him a call, but he didn't pick up yesterday...not sure how they weathered the storm.

New plugs are in...car runs smooth, idles fine...but still stinks to high heaven!

[Horizon200]

Just pulled codes and I ended up with:
KOEO= 95= "Thermactor Air System error. Right (passenger) side airflow always upstream."
KOER= 42= "Exhaust Gas Oxygen Sensor voltage signal always rich-does not switch."

So, the second one I pretty much expected.
The first one got me searching. On the right side at the front of the Engine Harness there are two round sensor plugs. One goes to the temp sensor in the intake just to the right of the dizzy. The second one (it pigtails off the other sensor) is not connected and there is nowhere to connect it! I honestly don't remember where/if it was connected when I started this endeavour!

Anyone with the Mass Flo set up...can you go look at how your's is set up on the right side of the harness for me?