Maine-I have a Top Gun Nitrous kit in my 1995 240. It is a single jet wet kit. The reason i went with a wet kit vs a direct port kit, was you can install it yourself. And with a direct port kit you will have to drill/weld your intake manifold. With a wet kit, just one hole in your intake, buy a brass t from home depot for your fuel line, and your pretty much done. I first ran a 50 shot, then 75, then 100. with the 75 shot i was running mid 14's. With the 100 shot mid-high 13's. My only major problem with my car was oil leak, but that is because i didn't replace my crank seal when i did lightwieght crank pulley. But i went through atleats 10 bottles this summer.(valves started tapping a little, but dont know if it was due to nitrous.) I would say go with the 75 and you will be perfect. Car started behaving a little funny when i was spraying 100 shot. I went through 1 bottle at 50 shot, like 2 at 75, and like 7 at 100 shot.
Ps. I am actually trying to sell my nitrous kit, for money towards my front mount my kit consits off.-10 Pound NOS Bottle W/ highflow valve(top gun uses Nos Bottles)-Nos Bottle heater-Nos Bottle mount pressure gauge(blue face)-Nos Bottle blanket-Jet fors 25-50-75 shot. can get jets you want for any size shot.(6 dollars for both. 1 for fuel, 1 for nitrous.)-Bottle brackets-14 foot line(perfect for 240-fuel and nitrous solenoid-short steel braided line froms solenoid to Single jet(Everything needed, is included. Only thing you will need to get is switch from radio shack to turn on and off.)I just bought the kit at the begining of the summer. I got it for 450. The bottle heater was 120, the gauge was 50, and blanket was 35, and the brackets were another 20. For a total cost around 675. I am asking 500 for everything plus shipping. If maine or anyone else is interested let me know. I can take pictures, once i finish getting everything out of my car. I might just through it on ebay.... My sr is getting closer to being done(hopefully) so i will be needing the money to buy my front mount

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