Project 2-6 from Hooda-Weld Blowoff valve on intercooler

[hooda]

So, I met a guy that does hop-ups on Honda Tuners as a part time thing. He showed up at my door with the intercooler and blowoff valve shown below. The idea is to weld the blowoff valve directly to the intercooler. I have very little experience with turbos, so any shot I get I take. Eventually I hope to make it part of "what I do", but for now, this is just a favor to a friend that I will call a learning opportunity (ever heard of pro-bono?). Even though the plan here is welding the valve to the intercooler, every other blowoff valve that I've seen personally, has been installed someplace else along the turbo piping. I plan on doing at least one, if not 2 practice welds before I do the actual part. This due to me relatively little experience, plus the fact that it's not my part. I'll probably post one pic on the TIG section of the forum to ask for suggestions as far as starting settings. But as a rough guess, I'm thinking 125 amps, a 3/32 Lanth tungsten, Gas lens with #5 cup. AC balance at 25, Freq at 125-150. Pulse? maybe, but then I'll change the settings to Average out @125 amps, like 200base, 1sec pulse, 50% background/50% on time. Is this close?