speedo cable question s10 v8

on my 86 s-10 i went from stock 2.8 v6 with auto transmission to small block 350 with turbo 350 trans. I remeber reading a post on here about what speedometer cable i need to get to hook up my autometer speedometer. I know i either read it on here or s10forum but i have searched and searched on both. I remember something about a fs chevy speedo cable but help would be appreciated. Oh yeah and if anybody needs my stock speedo cable you can have it just pay to ship.

any cable for a 350 trans should work. 80's model fs would be the first place i would look

thats true but i remember reading that there was a certain cable that worked out well because of the length.

not sure on that one but im sure autometer can send ya one if all else fails