I had a 1967 GMC 4by4 3quarter ton with the 305E v6.,it was a great truck a real brute, it would only go about 60 mile per hour but it would go anywhere it would probably even climb up a tree.
thanks, dual shorty glass packs, wish I got a video of it pulling my 63 off the trailer,it had 4 flat tires, and my 62 grunted and lit up the tires, it was awesome ! no problem for a big block V6!
The detective in me seems to think your camera movement shows you have a problem with your left leg. No? BTW, love that truck and especially that engine.
GMC had its own identity at the time I see. I'm curious about the reason behind the division's decision to go with a V6 engine family vs a base inline-6 and optional V8's.