318 la head vs magnum head swap help

It'll be fine with a little gas. Two things. Run a wet system and don't run it lean. Find one like .520 ish and 230-240 ish @.050 on like a 112. That'll split the difference and run good nitrous or not.

i'll probably just run a powershot kit with a 75 or 100 shot. i've had a little bit of experience with nitrous after helpin my dad the last few years. i figured it would be ok, but i thought i would get a 2nd oppinon on it. i guess i'll spend most of my lunch break today on the internet lookin for a cam similar to the specs you gave lol.