I had a predator, until it was stolen out of a friends car, but before that I installed a SLP speedo recalibration unit. I know a lot of people that are using

predator are having issues with changing the speedo calibration after a gear swap, well after my pred was stolen I went ahead and bought a LS1 edit license but left the SLP unit to keep calibration in check, if you cant' get your setup right with the predator I will gladly sell you my SLP setup and use edit to get the 4.10 issue fixed. Let me know.