ON MY SONS MAGNUM, HE SEING ABOUT .5 TO A HAIR UNDER 1" AT IDLE. SEES 5-6" ON THE HIGHWAY OR GOING THRU THE FINISH LINE

THE KEY IS HE WELDED BUNGS ON HIS VAVLE COVERS AND EVERTHIS IS AN LINE. NO RUBBER GROMMETS ETC THAT CAN LEAK. WORKS BETTER THAN I THOUGHT IT WOULD


....BAD A$$ STREET CAR.....