Thanks for the reply and the advice. I'm actually going to take my truck to a local Automotive shop for the initial startup. This Automotive shop was recommended by a popular engine building business here locally. My concerns were making sure that Zinc Additive was going to be mixed well enough to be affective. The engine and Distributor are all setup on #1 cylinder, radiator and water jacket are primed with coolant and will bring along another gallon of coolant for them to top off. Man, I'm soo excited and nervous to get this engine going I can barely stand it !!!! I have put soooooo much time and effort to get this truck going. It was just a shell of a truck when I got it and to have come this far........ Woo Nelly, it feels like Christmas Eve when I was a kid ( I'm a lot older now LOL )