Quote Originally Posted by redfirepearlgt View Post
So how is the pump regulated? What pressure differential will you attempt to maintain or is it preset based on engine displacement and RPM when you order the unit? I understand the concept just curious at what point too much vacuum is too much and starts to hamper the upward stroke of the piston cycle. In my mind too much vacuum effect on the piston up stroke would be like sticking your finger over the end of a syringe (without the needle in it) and trying to pull up the plunger. Thanks in advance for the 411.
It has a built in adjustable regulator, you are correct about it being preset from them based as you mentioned. I believe we are anticipating 15" vacuum.

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