Max shot of NOS on a stock N/A 4.1?

[Tim Barnum]

I bought a 83 regal with a 4.1 for $300. I've changed the front and rear of the car so it will look like a 87 GN. I was just wanting the car to run a little faster. So I was wanting to know what is the max recommended shot of NOS the motor could take? I'll eventually convert it to turbo. Thanks Tim

 

[turboost]

If you are running that car at the shootout next year....get your times with a 25 shot and then use a 150 shot for the race I cannot take credit for this type of racing. Some other group has perfected it.