I am looking at the NOS Sniper Nitrous Kits and they have 2 universal ones for the 4 cyl engines.

I just don't know which one is applicable.

Neither. Square bore is a carburetor where all 4 barrels are of equal size, and a spread bore is a carburetor where there are two sizes of barrels; small primaries for smooth driving and fuel efficiency and larger secondaries for POWER!

You would want the NOS kit listed for an EFI engine; there would normally be a single nozzle that gets plumbed into the intake track.

I am looking at the NOS Sniper Nitrous Kits and they have 2 universal ones for the 4 cyl engines.

I just don't know which one is applicable.

:rofl: :rofl: :rofl:



sorry couldn't help myself.. just get a dry setup for EFI.. one that taps into the intake pipe.. or throttle body. like the Edelbrock #71000, universal kit.. its activated during WOT..