Rkrig,

I've heard that the pressure fitting should be close to manifold. My Mac's pipe has the fitting right after the bend.

Another thought is to start over with the installation. Many times just starting from scratch will allow you to stumble onto the solution. Double check everything. Make sure there is nothing blocking the fuel flow AND nothing blocking the pressurization (sp?). Make sure there is nothing in the fitting on the pipe that is blocking the air flow. i.e. piece of metal, glue, whatever.

Good luck.