The correct spool for an application is the one that delivers the proper amount of fuel at all the part throttle opening angles
Chrono Series Water Temprature Gauge2-1/16"
Comes complete with detailed instructions and all necessary hardware
Can be used on 318 if 340-360 cylinder heads are used
080" Wall Thickness HI-TECH PUSHROD
Electric Water Pump, Fits Big Block Chev, High Flow Style, Black Finish MZWP300S Product:55GPM, Standard Motor The correct spool for anElectric Water Pump, Fits Big Block Chev, High Flow Style, Black Finish55GPM, Standard Motor MZWP300S WP300S American made with quality far superior to any other performance aftermarket company, we build our water pumps with pride right here in the USA. Don't be mislead by inflated flow numbers and competitors' outlandish claims. Our 300 series pumps move more water and produce more pressure than any other electric pump on the market. That means