[eventytoo]

Wow looking good

A few things

1. Whats your voltage durring crank- run are you using a relay? Its no less than 11.2 volts. Any less that 7 and it wont run.
2. Your ground cables are also big.. form battery to motor motor to cab cab to frame then frame back to motor.
3. Take an ohm meter and check the housing of the o2 sensor to the header. There should be no resistance the o2 sensor
needs to be grounded for it to work correctly.
4. Do you have any vacuume leaks? Are you shure? Are all your vacuume lines not in use pluged?
5. Your tps what is it set at at engine off full water tempature. Did you ajust this and tamper with its setting?
6. Your distributor you modifyed to make it work. When your setting the timing there should be no advance at all
from 1000rpm to redline. If your getting advance your not setting it correctly. Also im not shure if your to set it at O btdc.
I always assumed that it was 10 deg btdc but the timing marks wold say 0 and align on lets say a 4.3 5.0 and 5.7.
7. Your map sensor this is the most important of them all If it is not working correct everyting will be incorrect. You ask
if the position matters? YES it should be mounted is the stock position. Also if your using another port then what it was in
orignaly you will have problems. Do Not run a tee off the map sensor to lets say a vac gague. Also of your not using the
stock size and legnth vacuume hose you will have problems.
8. The coolant temp sender is it in good shape is it within book specs. The cold fuel enrichment relys on the sender.
The t-stat should be 20deg. Higher than when cold fuel shuts off and goes into normal mode.

"when the engine starts to warm up and gets around 130degF the computer wants to start to lower the idle
rpm from 1000/900 to 600" This is cold fuel pulling off.

9. Do you have an air fuel ratio gauge? A vacume gauge?
10. What fuel pressure you got?
11.The injectors should be firing at the same time. A meter should tell you.

12. Your connector to the power side of the hei distribitor is an oe syle
snap in one. You kill the spark and not the fuel you will have major issues.
It will think its killing off and will poor fuel like no tomorow. I speak first hand
on this one. Watcing a hot gas engine diesel backwords not cool.....

The ecm is set up into cells invac @ rpm. One major key is the camshaft. You inline 6 may have different vacuume at blank rpm
and blank invac compaired to what you can get off the ecms your trying. Also weight of car to a truck gear ratio ect.
This is why without a custom tune your not gaining much over a carb.

All I can say is if you have a poor setup to begin with ( fulty sensors, leaks, incorrect wireing, poor timing, incorect tps ajust. ect)
You will never get it to run right. No matter what injectors stock computer or even a custom tune if the base calabraton is not correct it will
be like putting jam over moldy bread.