Before I go any further on my build I must now halt and order the SFI spec 25.5 from the foundation. Why? Because I've been following the NHRA rule book and quite frankly I can't find a way to potential within it's covers. (I know, that's not what it's there for) I would like to build the vehicle in a way to be exponential rather than dead end. In other words I would hate to weld it up in a way that killed it in it's tracks. For all I know I may have already ascrewed. Seems like the $40 or so would be a good investment?