CudaJohn; my truck is a '79 and they didn't come with BB so I need to get earlier truck booster according to the experts here. It's a very tight fit.

Btw, had a great conversation with Todd Marsh of Marsh Performance. Seems like a really good and knowledgeable guy! We talked a long time and and put down a good plan and I'm waiting on an invoice from him later in week or beginning of next week. My gut feeling is I'll be going with him to build my engine for truck.