Hi, I am asking this for someone else since I do not know myself. In a 90 Mustang with over 100K miles, would a good way to add power be to upgrade to a 347 stroker, or supercharge the 302. I do not know the condition of the motor. Car is street driven only. I did a little searching and the 347s are popular. I know this isnt the right forum but I figured I might get some good leads. Thanks.