I have a friend that’s big into four wheel drive seventies power wagons and eighties Rams. His strongest build, aptly monikered The Ill 318, was an early block with forged crank, Icon domed pistons, 1’st gen performer rpm, edelbrock carb, 2.02 valved 308 heads, comp .480 lift cam and roller rockers. Put it in a 33 inch mud tired, manual trans, 4.10 Dana ‘88 model W-250. Sadly, he never got to take it to the track (truck totaled by oncoming elderly driver jumping median) but it it was able to top out at around 130 miles per hour at about 5500 rpm. At least that’s what the speedometer of the vehicle pacing his speed read. Not bad for 5000 plus pounds of rolling thunder bouncing down the road. Still thankful I was not involved in that speed trial, I imagine it looked like a state trooper’s worst nightmare...
