1994 LT1 Engine "balks" under acceleration intermittently

Have the cold start fuel sensor checked by a qualified mechanic.Could be faulty ,allowing too much fuel into the chambers.

check fuel filter,air filter,tune up.

It should be a plug and play if your using the ECM for the 1994 engine. The ECM on the 1996 S10 will no work on the LT1 engine, for one thing the S10 ECM will only command for 6 fuel injectors and will have different injection pulse and so on. The program of the S10 ECM is made for the Vortec as to the LT1 will have different parameter **** as engine running temperature, vacuum readings, and timing.
The most obvious would be the 1994 LT1 runs on a OBDI system and the 1996 is running on a OBDII system. You can still run the 1994 LT1 from a 1994 with a OBDii system ecm, but some of the sensors will need to be upgraded to accommodate for the proper readings the OBDII system will need to have the engine to run right.
If you don't have the right ECM for the LT1, go to the wrecker's and locate one, Caprice, Camero, Firebird ECT.....
Thank you for using fixya and good luck on your project.

sounds like a fuel problem , water in gas , ......

Being a 95 it dosent have OBD2 so it may not store a trouble code in the computer.
From the symptoms it sounds like either, Air flow sensor, O2 sensor
The O2 will not usually cause stalling under acceleration.

well i have had a similar problem to this one and it turned out that by replacing my fuel filter my problems went away.

There are to many things that can cause the miss fire and when does it happen?? During acceleration or idle. Here is a link for you to retrive the DTC codes and hope this will add some light to the end of the tunnel. http://www.troublecodes.net/GM
Good luck and keep me posted. Did you try cleaning your MAF which can cause miss fire if your engine is running to lean.

First thing I would do is replace the FUEL FILTER, then road test. There could be other things wrong, but this is a common maintenance item overlooked. Hope this help

Sounds like you need some new spark plugs and plug wires. They don't work very well at all when Cold, or under moderate to heavy acceleration

there are 2 things id check first. the coolant temp sensor. and then the map sensor. good luck