I got that price out of Jegs. Also novaguy73; I never said u would want 2 put a racing carb on a street engine but it is possible, Predator carbs are carbs that calibrate themselves by the air mass , they go from 390 ( i belive ) to 930 cfm, they come in a street version and a racing version. I do belive that the racing version is used on the 572's in Monster trucks but, those are calibrated from the factory for exotic fuels ( n20, alki... ).