I have a hydro boost unit from a low mileage 1994 GMC Safari AWD. It came from a clean low mileage van. It will use the 70's corvette disc/disc master cylinder or your factory disc/drum master. You can use the CaptainFab brackets for a nice clean install and make room for that big block. If your running a big cam and have no vacuum, this is also a great choice...
$60 plus shipping in a flat rate USPS box is $15. to the lower 48 states. Already boxed and ready to ship. PayPal is accepted...
Here is the link to the Captain Fab brackets -
CLICK HERE and then HERE