I reviewed some of the factory GM injectors listed here:

http://www.gearhead-efi.com/Fuel-Inj...d-part-numbers

I was looking at the "17104288 - Pink / Purple - 46pph @13psi - 7.4L / 454 - 94-95 *NOTE: Came with 30 PSI regulator used @ 26-32psi for 67-72pph" injector and curious how GM used these injectors in the 7.4 road vehicles and 5.7 on marine applications? What was done differently with the injectors which allowed GM to use the same injector at the same pressure to be used on 2 different size engines?

Steve