retard timing for nos???

if you take out 2* per 100 hp of nos where do i start from 36 total timing or from where my motor runs the fastet on hp
my motor runs faster on 32* then on 36* i dont know y it just does so for a 250 hit i pull 5 +1 to make 6* , the 1* just for safety , do i puul from 36 * or from 32* now i have the timing on 32* and pull out 8 for a 250 because my car is so wild when the gas come on
i can get on here much anymore but can someone have steve call or anserw this for me
9108407226 thanks logan

no set number, let the plugs and timeslip decide whatbtiming it wants............


cyl head, fuel type, tune up all play a role as do other things......

ok her is a lil info on my set up 598 ci bbf a460 heads and block 15 to 1 cr comp nitrous cam 831/831 just like i have it set up now it is a li dark on the plugs but i never fowl any out i run 6.5 psi of fuel @ flowing out the jet with the car started i run vp 120 gas