Hey Jimmy,
I have an 81 with a crate motor. Although you will need something different I posted this to let you know 2 things: 1. that this system bolted right in and before I bought it the folks at Corvette Central were great and answered all my questions, 2. I am also handicapped(OK all you wise asses,I'm talking physical here!), bad back. This system took me a very long time to put in...weeks. But that was due to only being able to work 15 minutes at a time and I wouldn't work on it unless I was feeling really good.
With no back issues and not having a lift I would say it would've been a 2 hour job max. That would be with a few breaks in the mix. Pretty easy.
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Dave C..........My mantra: I can not be bought!! Long and short term leases available.
In the words of Zora Arkus-Duntov "Is your seat belt fastened? Alright, Let's go"
Yeah, I know, Shut up Dave.