5. I ran more Earl's -8 braided line from the pump outlet to a Holley mechanical fuel pressure regulator and fuel log. This regulator is simple and dead nuts reliable. Although inexpensive, you'll find these regulators on everything from stock small-blocks to nitrous-huffing big-blocks. There is another fuel filter plumbed just before the carburetor with a fine mesh screen to keep smaller debris from plugging up the needle-and-seat assemblies in the carb.