I recently installed a ZEX dry kit on my b18b1. I have a step colder plugs and the dizzy is retarded and the zex brain works perfectly. It sprays nice and doesn't miss or spudder or anything. Checked the plugs and they are a good tan-ish color. Anyway, I just ordered a 75 shot nitrous pill with a 100 shot fuel pill. I did this just to make sure it wasn't running to lean or anything. Was this a good idea and is there anything else I need to do for safety? I don't need 2 step cooler plugs do I? And it shouldn't run like way to rich with a 100 shot fuel pill should it? I know it will be rich but I don't want it to be REALLLY rich, ya know? But I want it to be safe. Sorry if none of this makes much sense...Im on some good cough meds right now and Im not thinking 100% properly lol

 

I ran a 55 then a 65 zex dry shot through about 9 bottles with only colder plugs, no retardation, @ 1100psi. With a 75 shot you should probably pull timing like you're doing. I'm not sure if you need the 'fuel pill' as I don't know what that is...

 

Buy the fuel jet that Zex rates for 75hp. They know What there doing. Your deff going to want to back timimg out 2 or 3 degrees. Also, running a 75 shot on stock injectors probably is'nt too good of an idea, You should look into this more and maybe considering upgrading to a wet system. I've personnaly run dry and wet systems and perfer the wet/fogger type. All you need is a fuel pump and a timimg retard box and you can max your internals out lol. anyways hope this info helps you and good luck