Hey Grumpy, have you seen this yet? http://www.competitionproducts.com/Melling-Shark-Tooth-Oil-Pumps/products/2735/ This design is significantly smoother through the use of new helical asymmetrical gears. The new gear design provides the engine with an improved flow of oil without the usual pulsing found in traditional gear pumps. Significant reduction in pressure ripple (pulsing). Reduction in torque ripple in the pump drive. Improved distributor operation - reduction in spark scatter. Improved distributor gear and intermediate shaft wear. Includes chrome moly intermediate shaft with steel guide.