440 duster. Need engine build advice

I was messing around with this demon carb. The linkage hits on the drivers side of the intake. What is a good van spacer for the demon carb? Just looking to get a little space. I don't want to trim the manifold. What do some of you guys run? I will get pics on here ASAP. Thanks again fellas -Billy

HVH super sucker and it's worth 10-12 hp and torque bolt on