let me look it up real quick. it's just a ford EFI stage 1 kit, with the shark nozzle and 10 lb bottle for options. and yes, i did buy a zex purge and zex bottle heater because they are half the price. the purge is fine, but the zex bottle heater does not hold the bottle at a constant pressure, it just gets hot and stays there, and turn off and on once in a while. the NX heater is twice the price but it will turn off and on depending on the bottle pressure. i recommend that, as most people that spent the money on it do also. let me get that link though