Does anyone know if the 86 K5 has electronic fuel pump??? I am trying to install a 454, and I need to know if I need to look into a pressure regulator. I am installing a 750cfm 4150 Holley for the 454, and if the truck has a elec. pump, I'm sure I will have to tone it down some so I don't make the Holley unhappy :-( Suggestions???? Thanks all!