weiand highrise in the way of distributor

hey hows it going everyone, i just got a new distributor from procomp electronics for my 318 wich has a highrise with dual 4s on it and the problem is when i try t o adjust the timing the vacuum box on the distributor hits the intake manifold and i can not turn it any farther, does anyone know a solution to this without having to rip the higrise off?? thanks in advance and have a nice day