Yeah, I thought the pressure seemed a little off. I know I have a pretty small air filter on it right now because of hood clearance issues (saving up for a fiberglass with built in scoop), but when I've had it off entirely I never noticed a very significant change. I really wouldn't think it would be too small of a carb to cause that much restriction, at least I would hope not. I do have the stock O2 sensors that came with the engine that I'm currently using to plug the bungs in the TTI headers. I was going to try to wire them up to a volt meter and see what I could get out of them for at least some indication rich or lean.
