I guess the big question here is; what is the point of no return ( to stock condition) without spending as much or more $ than it cost to put it in the 10's - which is why I brought up the roll bar thing. I went through this a short while back. Every situation / car is different, but IMO, you start running faster than 10.50, you are going to start looking at a dedicated race car. Even hi 10's will be starting to cross over the line. The OP needs to consider this up front, before he starts cutting and welding .