The "spare" engine on the trailer with the Scout should tell you something. I have had several Blazers over the years starting with my first in '72, never had any compllaints. Offroaded them from Maine to Colorado, never failed to get me where I was going and back. The '72 had a 350 V8 with a 4Bbl and a 4 speed, I opted for just the two front seats and rubber floormats. Added some big tires and 3/4 ton PU springs in the rear, didn't really care about gas mileage as gas was .40 a gallon back then.