I have a h22a4 swapped civic with a stock block and head. I have basic bolt ons and i was wondering would it be smart and safe to spray a 75 shot? Im also running a act stage 4 unsprung clutch.

 

i'm sure you could of searched this...i think you'd be alright. I wouldn't do much more than a 50-75 shot on a stock block.

 

what should i set the window switch?

 

You really need to search man. This has been covered for 10yrs already.
Window switch? Just another something to break......Never used one.
You rely on it, and then one day it fails and pops your motor.

***My Nitrous Disclaimer***
If you don't have the money or resources to repair/replace an engine, you have no business playing with nitrous. It CAN destroy your motor very easily.

Just for a little confidence though:
I've run about 150lbs through my stock JDM H22A with a 100 shot and went 13.3x@108 on Drag Radials in a 3000lb pig, using nothing more than an MSD dig6(to retard timing) and a vafc to tune AFR.

 

my advice is to buy a zex kit....they rock

 

Wouldn't even bother with it on a stock block, in terms of longevity and reliability in making power, if you're willing to but the stock block through knuckle head abuse for no reason Turbo it @ low boost the RIGHT WAY and you won't even need a nitrous bottle, ON TAP power with more to give then a punk *** 50 shot of nitrous.

 

But what if you only live your life a quarter-mile at a time?

 

ROFL! then you need NAWZ two of the big ones....and you need them by tonight!

 

****ing amazing and to op its nitrous damnit!!!!!

 

This is a ridiculous statement.
Punk *** 50 shot? Man, you've never used Nitrous have you?
You're suggesting someone spend $Ks on a decent Turbo setup to run low PSI VS spending $500 and installing a kit in 2-3hrs.
I have lost confidence in your mental ability after this post.