360 with Nitrous?
Dedicated fuel system deffo as has been said.......I ran a '71 340 Cuda with 10.5:1 TRW forged pistons and Fel-pro Blues back in 1987 with 2 blue pumps, 1 for the N20 alone, 10mm Moroso hard lines, hit it with a 250 shot off the line (110 N20 jet/110 fuel jet), it was a walk in the park, came back a bit on the timing, it went from the 108mph N/A to 123mph, sweet, no drama's, no tipped plugs NGK 7's. Keep the N20 fuel supply strong and a 100>125 shot should be ok even on 360 cast pistons, CR/timing/fuel type are all important to tune, if money allows throw a set of forged slugs in there for when the addiction gets too much!!