Can I put a 1985 350 in a 1996 1500 truck

The swap is fairly straight forward. The problem is your truck will no longer be smog legal/

I don't care about the smog it's a swap I want to do can you tell me how to wire so It will run motor and tranny in but I can't get it to fire up

You'll have to custom build your engine harness and starting circuit. If you swapped or removed the PCM then your anti-theft (Passkey?) is probably preventing the ignition circuit from working.

My com still in all wire harness still in truck can anybody tell me how to wire with the wires in truck

Well if it were a year or two earlier it would be simple but ur talking rigging the the wire harness and probably ur shift modulator

Just want to know hot wire to your distributor this accessory not all the time hot run other wire from your distributor to RPM gauge then hook your vacuum line from the front of your carburetor the little one to your transmission models and then take your big vacuum hose running to the brake booster on the back of your carburetor then take the other ones and run to your PCV valve that's all you need to do oh yeah and you will have to put a inline pump with a fuel pressure regulator to your carburetor or you can disconnect your fuel pump in your tank and just run in line pump and filter