This is an Enderle aluminum dual drive for mags, pumps anything that is 3/8" hex driven. Inside the drive are three gears which allow the racer an easy way to run cam speed or you can change the gear sets to get different fuel pump overdrives to allow for more fuel. I dont know what it is set up with now, it has not been opened. It includes what is shown only.
$350 Shipped/Paypal fee included