I am looking to build a period correct hot rod 1934 ford truck cab. I am running a 1968 BBC and sticking to the general rule of 10 years I am looking at 1958-68 era parts and kind of want to do a west coast 1960's Oakland show look. I am looking for a time period correct supercharger. I'm running short on finding what it correct. I read paxton, 174, 177, and a swing arm roots 6-71 is correct? Any thoughts would be great. I would appreciate any and all input. Thank you.