Moroso 3 Vane on the dragster pulls 10 at idle and 14 down track, no regulator. My car has an enhanced 4 vane and pulls 10 or so at idle and 17-18 top end, not regulated. My experience sealing the engine is the key.

"I am not ashamed to confess I am ignorant of what I do not know."

"It's never wrong to do the right thing"