My Nitrous bottle costed 42.50 after tax for a fill.. I ran a 75 shot on a d16z6 last summer & experienced problems until i did some trial & error. Stock fuel pump is fine.. you just need an adjustable fuel pressure regulator.. I ran NGK irridum plugs. They work awsome.. Zex plugs sucked.. i melted them!!! also i retarded my timing by 3 marks on my AEM cam gear. Suspension does make a big difference with proper track tires.. car ran 15.1 & i'm sure it could have used a lil more tuning but i decided to swap my engine to a b18 this year..