Here are the details on my 2007 427R Roush Mustang. I know I am forgetting a few details but if you have any questions or comments, please feel free to ask! Special thanks to @WVTrakPak for the inspiration.
U should get a 10 stage 3 they got forged internals and 2.3 tvs stock much better than the stock 3v/M90 alot of ppl don't know 10 hammer and stage 3 have forged internals and 2.3 tvs 540 hp stock rated