I talked to Royce before I bought this one. He told me someting along the lines that the three barrel dynod better than any other carb. Again Something like that. The jist was he really liked it. What do you think that one inch spacer will do? As soon as I get caught up a little I am taking a weekend and wrenching on that car. Water pump, intake, carb, wires, and brakes. I am really looking forward to it. I will definately let you know. Be carefull over there.