fastass350
SStock8569
I've always had vacuum issues with my 85, new pumps not lasting but a few months and old junkyard pumps lasting a year or better typically. I always start messing with the system come warm weather when the vents won't switch off defrost and the aftermarket heater valve won't suck closed. That's my issue now, not enough vacuum at idle to run those. Should I install a secondary electric and leave only the brakes on the factory one or does someone else have any better ideas.
Thanks
Chris
Thanks
Chris