I have an NOS brand big shot kit for 5.0 Ford for sale. I bought it over the winter and only had it installed for a couple months and maybe used it 10-15 times before I sold the car. This kit is adjustable from 100-300 hp, includes the 10 lb bottle, and the spray bar plate is for a Holley Sytemax manifold. This kit is $710 new at summit, and special order because of the systemax plate. I would like $550 obo. Text me at 330-774-9380. Thanks.