This Regulator guarantees precise, accurate, repeatable and reliable fuel control unmatched by "ANY" other fuel pressure regulator. Set your idle pressure separate from your high end settings. No jets, pills, logs or barrel valves required. This is the easiest to plumb; easiest to use; most accurate method of metering pressure control using a mechanical pump. This regulator is the perfect match for the Aeromotive line of mechanical fuel pumps. Fully compatible with Alcohol fuels.Type II bright dip anodize protects the 6061 T6 aircraft grade aluminum alloy body and cap. The body features O-ring style ports with a -8 AN inlet port, (3) -8 AN outlet ports and a -10 AN return port. The port design provides flexibility for single or dual carburetors.