I have heard you say many times plug and play is a fantasy, well you are correct again, my SST smart tune technology from retrotek didn't work, fortunately it did run in the 1800 to 3,00 rpm range quite well to break in the new engine, it is running rich and will stall out below 1500 rpm, I should have a laptop by next friday and assistance from a knowledgeable friend with very good software from retrotek. Anyway, my brand new 130 amp alternator spun for about five minutes and locked up, since I bought it on the internet, another wait anyway and also my high dollar nordskog boost gage didn't work, so I still don't know what boost I'm running, I will have alot of picks and info to share about a week and a half from now under the al head section. Since I started it up in my shop with ventilation and I was not able to walk back to the mufflers are go listen under the hood as I was just trying to break it in, I don't really know what to think of how it sounds, I am very pleased to say that I had not one leak of any kind. A friend of mine said it sounded like something was angry under the hood.