Caroline's Truck,
I'm sorry if I didn't go into enough detail for you on the "mini-HEI" tech tip. I approached it more from a common sense approach and I figured anyone who could run a lathe could probably read a digital caliper. If you copy the dimensions of your old distributor and you use the same drive gear it is going to work no matter which engine you put it in.
That "tech tip" wasn't meant for everyone since you need access to a lathe to perform it. I think a machinist would consider that modification child's play.
Good luck on your project,
Fred Lorio
