In the stock bottom end cars that I have raced, 100-150 worked well. When I worked in a performance shop, the main issues we noticed was customers not having enough fuel. A lean condition causes so much damage.

 

his engine is fresh. a 35 shot dry wont hurt it much, but will to some extent. you never did say if it was a dry or wet shot

 

The Summit site says dry, but I honestly dont know the difference. I was out in the car today, hammering on it. I went WOT about a dozen times, thats just cruising during lunch ......Im thinking going with a bottle may be a very expensive, very damaging project.

 

a dry shot does not add any extra fuel. nitrous is the cheap but potentially damaging alternative. and after a while it does cost a bit to refuel. honestly, if you arent racing, its not really useful. you sound like you would be better off going turbo or stroker