Vortec v2/v3????

Both blowers you mention are capable of supporting around 550 at the wheels with an intercooler. I recomend you buy a cxracing intercooler instead of the vortech aftercooler setup since its cheaper, is less weight, and has less parts to go break. I actually know of one guy who is making over 600rwhp with the old S-trim overspinning it. Unless you want to make some crazy power I dont see a need to buy a bigger centri IMOP.
 
Depends on your power goals in the end. I have the SI-V3 and love it. I'd rather have a bigger blower and not spin it as hard, if you don't mind the sound. Once you get past the SI-trims, the bigger blowers have a little more noise.
 
Thanks guys! I was aiming for around 550ish. That will most likely be my 5 year plan for the car. Winters...... I will be asking you some questions regarding c5 corvettes in the near future :) I am debating between a c5 or a CTS-V. A c5 Z06 if the price is right :) I have a question now actually?? Are c5 regular base vettes starting to show there age, or do they still kick butt??:)