nitrous advice

many many people have ran up to a 125 shot on the stock pump without issues. Unless the pump has alot of miles on it or your worried about pump failure the stocker is fine with its output if you want to be really cautious to a 100 shot.
 
With that many miles, stock fuel pump, and if you want to toy with the timing I highly suggest running a 75 shot to begin with. When you get the bigger fuel pump go to a 100 or 125 shot. I run a zex dry kit and have a 100 shot. I started with 75, but bumped it up after a month of toying with the car to get it where I want. I'm at 12* of timing with the 100 shot. Autolite 24 plugs, 93 octane, and that's about it.
 
With that many miles, stock fuel pump, and if you want to toy with the timing I highly suggest running a 75 shot to begin with. When you get the bigger fuel pump go to a 100 or 125 shot. I run a zex dry kit and have a 100 shot. I started with 75, but bumped it up after a month of toying with the car to get it where I want. I'm at 12* of timing with the 100 shot. Autolite 24 plugs, 93 octane, and that's about it.

OK give it to me straight, what did your car feel like with the 75 shot, and the 100 shot. Are you happy with it and do you spray much! Also are you using a window switch.
 
OK give it to me straight, what did your car feel like with the 75 shot, and the 100 shot. Are you happy with it and do you spray much! Also are you using a window switch.

I have the mods in my sig below. I do not have a window switch. It felt great and was tons of fun to play with at the track and on weekends :nice:
You'll have tons of fun with it, I plan on getting a window switch over the winter [I garage the car], a bottle heater, window switch, installing my blowdown and anything else I may need. I have alot to do before summer!