No matter how you use your car--street, race, or everyday driving--these pumps are the key. They are powerful enough to support up to 1,300 hp and reliable enough to run every day. The pumps flow 500 lbs./hr. at 12 V and 45 psi. They utilize a flow-through design, aerospace composite materials, and stainless steel precision rollers for thousands of miles of trouble-free performance. The pumps can also be used on carbureted or fuel-injected engines.