Nitrous plumbing A1A...??..

And thats good advice, I ran rich because thats how the kit came and we didn't know any better, (2 deg out on a 250 shot), never tipped a plug cos rich tunes can stand more timing and your just not making the power, also ran the fuel psi down to 4 with no gain as was way rich, would've gone faster with 6>8 out. 1.4 secs faster on a 250 shot isn't exactly impressive, you can do that today with a good 150>175 shot I reckon.