i have a zex universal v6 kit. i ran the 75 shot and blew up my motor. i used autolite plugs 2 degrees colder like the kit asked. theres no way to retard your ignition without a chip i guess so i was kinda screwed. i wouldnt do it without a chip. you can make your own kit bottle solenoid lines ect for less that 300 bux. mix an match from ebay and get a chip for like 250 thats less than what i paid for the zex guage remote and purge. i suggest getting a chip if your wanting the bottle. for safetys sake.