i would check your "actual" compression as oppossed to what the specs say it is.... the 400's are great engines in my opinion and it isn't that hard to get the hp/tq....it just takes money. stroker kit and heads will get you on or over your mark, but can the rest of the car handle it?
the right diff, the right transmission to match, the right set of tires, upgraded sway bars and/or traction bars........it'll all make a difference
