one thing to consider aswell is what kind of transmission u plan on running behind the 351, if ur goin for a 4 speed like me, there will be some....massaging....of the trans tunnel, same for any manual really, but if ur runnin a auto the trans tunnel with a body lift should clear no issues, ALSO, if im not mistaken your truck in that year will have a rack and pinion instead fo conventional steering box, which provides more clearance for the headers on the drivers side, and you WILL need a dual sump oil pan, other then that, rock and roll
Truck Specs:1987 Ford Ranger
Tires/Wheels:38.5 gumbos daily, 40" boggers offroad...
Engine Mods:302HO, runnin aobut 12-1 comp, 350whp
Suspension Mods:bastard pack in the back, some random coils up front
Exterior Mods:bushwackers on there way