Re: Stage 2 questions
How do most of you change the valve springs? use compressed air to hold the valve up and compress the spring?
I believe compressed air is the most popular method.
Second, while no so much related to stage 2... How much does the stock trans in a 00-03 hold up too? does any extra 50fwhp cause reliability problems or seriously shorten the life span?
You're gonna want at least a shift kit, but be prepared for more trans work. As soon as you start modifying the engine, the risk to the trans goes up. They're one of the weaker points to the car.
Third, with a stage 2, what are the avg E.T.* and mph in the 1/4? I would like to be in the high 13s.
To be honest, you'll probably need the stage 3 to get to 13'* for a Bonneville. It'* a little harder than the GTP'* mod for mod...
Rule #1 though, get a scantool before you start dropping pulley sizes. The Aeroforce is great for in-car monitoring.