those pumps are air low pressure air pumps. I don't think they'd draw very much vacuum. I'd go with electric or a belt drive vacuum pump from a diesel.
Yes. But, anything that blows air has gotta suck air too. I converted mine from a front impeller fed suction to a rear suction port.
You'd be in the same boat. Too much vacuum. I just changed the pump on my Powerstroke and it pulls 23". I've heard that you can get a restrictor to put inline and reduce the amount of vacuum.
Right here at the new vacuum port. I will be trying this again with less vacuum. I disected the old pump and it was NOT a bearing failure. Rather the internal thingamagig came apart.
