Fivefingerdeathpunch low compression in # 3 cylinder and mileage over 2ook. It does appear a lot of info on www about doing top swap, besides 3.8 are a dime a dozen, every supercharged 3.8 I have found is high miles. I have plenty of low mileage n/a motors in my area. Im not looking for a performer here, I have a well set up Grand national and a corvette. I drive over an hour each way to work thru the mountains seems this car would be economical and a fun drive to work. As the builder of this 10 sec buick I understand how compression relates to detonation. Previously I was told a tune would make this work. As looking at some kits available and reading a few stories here plenty people have done this swap. I have not purchased a donor car and will not start this project until after christmas. So I may still find a s/c 3.8 to use. I work for a auto wholesaler part time and still await finding a wreck. I dont need this car to drive and have time on my side.

Thank you both for transmission information. Im still gathering info before doing this swap.I will keep reading. Seems the Bonneville forum has some knowledgeable members also.
Thanks for your input.
Tom