[J-Bird]

Ok so i went and tested out an SRT-4 today and i think i will be heading down to pick on up on thursday but i have a few questions first. What do they usually dyno at stock at the wheels? How rare r factory freaks or how rare r the opposite when u get the slow slugs? I there any major problem areas that i should watch out for or have u guys had some bad problems with ur cars yet? I think that should get me most of the info i need, thank in advance.