Both you and finch have recommended the 14/47 combo, so I am about to order a 47t. Thanks. If it doesn't gear it up high enough, I will eventually try a 15/48 setup (monkeyed around with Gray's chart last night).
I just noticed that your '03 is a big bore and you named her "the Beast." How fast is she?
Also, is it necessary to use new sprocket bolts when I install this new sprocket?
You will be happy with this set up - in tighter stuff the 15/48 may be better(I hope you already have a flywheel weight)
It is not how fast but how hard can you hold on for any length of time.....it will rip your arm sockets out if this is what your need for speed dictates
Yes definitey use new sprocket bolts/nuts