Interesting project, love to this kind of rebuild myself. Did mine on a 1965 Chevy Van 32 years ago, installed a 292 stroker 6 & TH350 to tow a trailer, still can tow since 1988 with 90,000 miles on engine. still have the van. Now tow with our '94 k1500 GMC burb that I installed a 383 stroker in last year. Is a towing monster now. As for alternators, keep track of the nut that holds the pulley on. Climbing a steep hill towing last summer, the nut came off and the alternator and or belt started screaming like crazy. I did not stop cause I knew we probably couldn't get restarted on the hill so got to the top and pulled into a gas station which was right at the top. Belt was still on but half off. It was a Sunday so I thought we were toast, but there was a guy at the next island over who heard the screaming and came over to look. He said he worked at the NAPA store in town and would follow us over there to buy a new alternator, and they had one!!! Sort of worked out, we got angels keeping us safe.