I've often wondered about the benefit of lowering the Iat's with say a 25hp dry shot on the track would be considering how insanlely cold n20is... (with a propper tune) I have an extra ZEx ford efi nitrous kit that utilises the wide open throttle activation via the tps and also runs inline with the fpr to bump you're pressure up. But I think adding a window switch would be a good idea to prevent boo boos ... I've ran the same kit on my 370k 4.6 with no tune at 75hp with no problems for quite sometime.