370 is still high on a Dynojet. (Mine was on a Dynojet, btw.) As I said, it is VERY easy for a tuner to manipulate dyno numbers by changing correction factors or correction standards. My car picked up 14 rwhp switching from SAE to STD....
There are lots of people with an entry level centrifugal (intercooled) at 9psi, with simple intake/exhaust bolt ons, that make in the 360-390 range on a normal reading, non-doctored Dynojet. Heck, Vortech themselves rates their non-intercooled V3 (which I'm sure is somewhat more efficient than a V1) at 364 hp, which translates to only 309 rwhp through a 5-speed. CAI, exhaust, TB type stuff will maybe get you 25-30 rwhp, which still leaves you 30+ rwhp short of 370 rwhp.
It's like many have said before. A dyno is a tool for TUNING, not for measuring power output. Trap speeds are what actually tell the tale.
All this stuff being said, $3k for an installed, non-intercooled blower is a pretty good deal. BUT, if you have the ability to do it yourself, you'll probably wind up better off. Have you asked them if they will sell you just the parts? A centri install is VERY straightforward, and something the average car guy could do in less than a day. Heck, I could probably do it in less than an afternoon. $400 for an installed meth kit would be a good deal depending on the brand of kit and if it's trunk mount or not. A trunk mount AIS kit? YES, that's a great deal. A fender mount Snow kit...eh...an OK deal.
Also concerning methanol. While it is GREAT stuff (I picked up 7 mph in the 1/4 with it), I'd still say get an intercooler if you can afford it. It's simpler and easier to tune than methanol.
