Hey, i found this kit for sale locally,(which is hard, because i cant buy anything in canada for cheap) for 350. he has run one full bottle through the system, and has about 3 lbs left in the bottle now. Would this be a good choice? I wanted to run a 35 shot, but i ive been told a 50 is safe on our engines( mine has 180000Km, so like 112000 miles or so, would i be alright with a 55 shot or should i buy a 35 jet? ive got about 175-180 compression in each cylinder and a new head gasket and timing belt w. water pump are getting installed in a few weeks) Also, as sad as it is, i still live with my parents and go to university, and they are against me getting a nitrous kit. They dont understand why i want to have it and think it will lead to me crashing my car and killing myself. Now i dont street race, i just want some more acceleration. how can i convince them to agree with my choice( i dont care if they dont want me to have it, its my money so fuck them, ill still get it haha)
the kit.
http://zex.com/Products/NitrousOxide/Wet4-6cyl.asp

I think its a good kit. Just make sure you get everything from him. You wont be happy with a 35 shot, I wasn't happy with a 50 shot. I ran a 75 shot on mine for about 6 months and before I pulled the engine the compression was still 185 all across, and that engine had 155k on it.