The 4.2 only had 110 HP or so. The 4.0 was 180 HP. So, 65% more HP.
My 92 4.0 Islander 5 spd would do 100 MPH back when it was on 225/75-15s, 3.55 gears. Only did that once.
It's just on 30x9.5s now, but will run 75 MPH all day on the interstate with the AC on.
You're probably going to...