Well guys, I cranked my new 454 and it sounds great. It lopes while cold but smooths out when it reachs operating temperture. At first I couldn't get it to crank because I had the distributor 180 out (how I did that I don't know) anyway I respiked the distributor and it cranked right up. It has 60 PSI oil pressure and runs cool. I haven't jumped on it yet, need to get some miles on it. I can tell it has balls. I have this 454 installed in my C10 pickup (AKA Texas Hot Rod). How many miles do I need to put on it before I jump on it? It's hard to hold back if you know what I mean...........Det45