the car is an 81 monte w/ a 355, corvette heads, holley stealth ram, LT4 hot cam among other things...

i parked the car 2 wks ago to replace the govoner in the tranny (700R4), the car was working perfect before this.

tried starting it for a test drive and the car would not start?
i tried again the next day the car started no problem, great!
i took it out for a drive down the street with no problems, when i tried to start it again it would not start!

- the car has fuel pressure (40 psi)
- there is no spark
- i tried replacing the ignition module, no change, so i put the old one back in(it's 6 monthes old)
- i tried replacing the ECM, still won't start!
- it has an MSD 6AL & blaster coil, there is power going to the box, but do not know how to test if power is going to the coil.
- i tried to eliminate the MSD and return to stock coil configuration, still won't start...
- the TPI wire harness is from howell electronics as is the chip inside the ECM, do the chips go bad?
- i also have a hypertech chip i tried but still no luck...
- i have replaced the coil pick-up, cap & rotor

sorry for the long post but i do not know what else to look for or test.. the car has not given me any problems all summer..
any help would be greatly appreciated

 

Just thinking out loud here but maybe your ignition wire. Or mybe the gears on the distributor are eaten up.

 

do you have the small hei or large
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do you have the small hei or large

have you looked to see if the injectors have pulse

 

checked inj1 and 2 fuses, and the ecm 20 amp fuse that is located in the wiring harness inside a fuse holder?

 

thanks for the ideas -
- the wires are msd super connductor 8.5 mm couple monthes old
- it is a small cap, accel which is brand new..
- this engine is in a monte carlo, so i will have to check a couple fuses..
- the distributor gear is good, i replaced the coil pick-up last week