Well , ok then , I’ll be your huckleberry! During my Gtx build, I used three different diss and boxes, first one was a look alike Mopar diss and and blue ecm , distributor had bushings in it and at least 4 thousandth movement in the shaft , engine ran like crap , second was another that was similar, but advertised as 7500rpm dist and possibly cost me a major rebuild after it possibly crossfire and damaged a cylinder, only speculation of course, third and one I highly recommend is the FOB , diss curved and ready right out of the box and the control box has performed flawlessly and with a built in rev limitor! Not that I need it but nice to have ! Billet diss with sealed ball bearings and zero shaft run out ! Now your choice ! And only my opinion! As previously stated!