Well, my crystal ball says we need a ton more information so let's get started.
Much more information about the car, and the swap. What ECU? What wiring changes were made? Adaptors used, etc. Who did the swap? Who did the wiring?
It should be throwing CEL codes - is it? Probably CYL/CYP errors.
Pictures are always welcome. Send pictures of the engine harness at the distributor and such. You have a ton of basic things to check. First, are you sure it has fuel pressure?
What ECU is in it now? If you don't have wiring schematics for your car and something the engine came out of in OBD1 configuration - get them. Google is your friend - the schematics can all be found online.
Welcome to the forums sir.