I have a 1994 5 speed ls coupe with a new b20b motor and gsr head
Its running a p30 ecu
Just bought it but its been ghetto rigged
Got a new gsr distributor
But everything else like the engine harness is from the old ls

What will I need to finish this swap?
Just bought new mounts
New dizzy

My friend says I need to buy a gsr harness and a gsr dash harness
These are pretty hard to find for me, are there any other kinds of harnesses and dash harnesses that I can use besides a gsr?

Any help would be great!