I do have the '65 El Camino with the '82 Corvette longblock in front of the Muncie 4spd. It was fitted with headers, Edelbrock Performer intake, not sure about carb or ignition. Bearings went out.

I got a shortblock Gen 1 from a friend for very cheap with low miles and the cam mentioned. I was going to use the 624 heads from the vette motor until I read up on them. Well, original plan was to just swap the shortblocks and reuse everything. Current plan is to swap longblocks and reuse everything once I get some heads. Hoping not to swap out the cam if I don't have to.

I think I better crack open the rearend and figure out the gear ratio manually. It was no slug off the line, so I suspect he swapped the gears