my kit was activated by a full throttle switch.
my car was DYNO tuned. i had 2 nitrous backfires trough the intake while on the dyno. how i blew my motor? I was about to race a carmaro so i armed my NOS. at full throttle at about
5000rpms or so i had a back fire so i let off the gas and i floor it again.....another back fire floor it a third time and that was it.one of my valves hit the piston.i pulled my plugs out and the tip of the #3 and 4 plugs were blown off. i cant remember what the part # was for the plugs were but they were 2 degrees colder.