Question on timing for 100 shot.
Rule of thumb is to pull 2 degrees per 50 hp of nitrous.
An easy way to pull timing is with an IAT resistor mod, do a search for it.
I seem to recall that the resistor mod pulls 3'. On a 100 shot that would likely be sufficient but reading AFR's and more importantly, your plugs, is the best way to judge.
IMO, you should look at investing in HPT of LS1edit. Log NA WOT runs to see where your timing is at then pull out anything above 28 plus the 4 and go from there with your timing and fuel.
Trust me when I say to search and read. This site has a wealth of info to be had. I spent countless hours reading and rereading before I ever opened my first bottle.
Good luck, you will love the nitrous.

