nitrous or no nitrous

3.55 is not that bad of a gear if your launching out of the hole on nitrous... but like dusterdon said make sure your fuel pump is up to the task. Also I would go with one range cooler plugs too and shorten the gap a tad. Might also wanna pull some timing...
With all that you should a 100 shot with no problem and can probably go higher as you learn the tricks...
By the way I have a 100 shot on a v6 F150 :D