A big block or at least a 350 would have been a better test.
I didn't know it was a 1/2 ton. That makes it an even worse comparison. I don't know what the rating on the truck is but I'm betting it's over loaded.No BB in a half ton and I recall the 350 was only 20 horse stronger than the 305 during that era.
No BB in a half ton and I recall the 350 was only 20 horse stronger than the 305 during that era.