n20 and timming

NEW TO GAS, n20,
so ive been reading through NOS threads and seen where 4 deg. of timing needs to be pulled out to start off with. (( if say 32 deg was max with out spray, 28 deg is max to start with spray ?? ))
looks like i will be running a pertronix magnetic trigger flamethrower dizzy if that helps the equation.

-im assuming the 4 deg. retard will not hurt the motor around town, it will just run better on the gas !

any tips or tricks.

this is all research at this point, but the plan of attack is... running my T-ram set up with dual wet plates and its own fuel system. starting with a 50 shot per plate.