Chevy 51 1/2 ton

On my 250 motor I am using a holley carb with an offenhauser manifold. I was wondering how to connect the wiper motor on it? There are two threaded ports on the side closes to the firewall on the mannifold. http://www.jegs.com/i/Offenhauser/750/5416/10002/-1?parentProductId=764102 Can I use one of these with 90 degree fitting to feed the wip\per motor. Also I think, if I use Delco fuel pump 6603 I should have the required vacuumed fuel pump.....Am I correct on this?

Thx

Last edited by cletis; 10/11/2010 5:29 AM. Reason: removed Ebay link