What year is your engine package? I am guessing you have the VST style injection with MEFI 1 ECU and utilizing the Keihin injectors. The other style Manifold typical in 99 on up Cool Fuel systems utilize the Weber style injector.

I have both styles with the appropriate fuel rails.

Engines are 1995's

Your engine is VST using the Keihin injectors

Some pics of my manifold

your manifold is for the weber style injector

I take it the other style manifold has the vst pump that mounts behind the plenum. If that is the case I have the entire setup still mounted in a boat but needing a new home. Randy

For future reference the difference is in the injector port the Keihin style is counter bored, and the boss on the lower for the 8 inch bolt

Thanks for the heads up tunertech, I will have to pull the other setup off of the engine. Randy