check the lifter to make sure the oil holes do not hang out on full lift and the stock hold down tray may not work .this will need to be check at full lift. if the hold down tray bottoms out on full lift you may shim it up on the block stand of with some washer i think you springs will work they will take a set and drop 10 psi i have run that much seat psi they will work .get some good push rods