Thanks Hank.
I Don't have 10 to 1 compression, and my 52 Chev H.T. is way over 2500 lbs. I'm running a T5 from an 88 Camero. The Clifford seemed to perform alright until I put my foot into it. Then it bogged badly. The gas milage was also very poor. I'm running a Carter electic pump (5.5 lbs and new 3/8 line) and so I think the fuel delivery was OK.
I think the key was the manifold heat.
The Edelbrock is a square bore by the way.
Thanks, Al