66 Chevy c10 stock

[geeman]

Hello I have a 1966 stock Chevy c10 that I recently purchased and have some questions that I haven't been able to find a clear answer on

1 is what is the ring gear size I'm the back for stock with a man trans and a 327

2 has any one here installed a gear vendor gear splitter of so how do you like and is it worth the high expense

And finally

3 what are some good farly reasonably priced lower upgrade I'm already looking at doing heads with steel side pipes

Thanks for all you inputs I am looking forward to making this truck awsome