Thanks everyone. The original pump came off the car that is a Dearborn, Oct 31, 68, 351W and non a/c. The local mustang parts shop give me a new pulley that he said was for a 390. I'm putting a FE 390 in the car. I'm going for fit. He didn't say if it was a a/c or non a/c pulley. My friend has the pulley so I will have to wait until Monday to get the numbers off of it. I will keep in touch.
Thanks Mark