Dan, you must be a retired hippie.
Van clubs and Truck in's were fun back then.
You had to cut out the doghouse to get that 350 to fit.
Did you have an overheating problem? I did and a flex fan helped cure that issue.
4 inches of foam in the whole backend with shag carpet made a big bed.
Stereo, cooler of beer and maybe a funny cig was standard equipment in those days.
I don't even tell young folks today on what it was like back then, they don't believe me.
Sounds like you and I had a lot of the same kind of fun back then!
I'll get some pictures of the spline setup later today.
Don