Nitrous on my 93 ex

my boyfriend just put a zex kit on an f22.they started on a 50 shot but i think he has alredy jumped it to the 75.the way the zex system is set up imo it shouldnt be that hard on that motor.as long as you arent spray happy.any car if you spray alot will eventually come into some prob.thats with any poweradder.I would open my cars exhaust up more(header) and do the colder plugs.as far as timing i think the zex have the self set on them.