after reading my original post, it was pretty vague. Here is the total scoop. I have the complete MPI setup currently in operation on the engine described in my post. It has the damper pulley cps, V-belts, a/c and is the kit that HESCO sells. I intend to swap all the MPI parts to the 99 engine. It's basically a long block with all accessories missing. I'll use my 91-95 distributor and coil, etc from the 4.2L engine. The 99 engine still has the dist. in place. Is there anyting special I need to know before swapping the distributors out. I'll replace the waterpump with the correct one for v-belt