99 c5 all fast 90mm t/bs say cabel drive only no drive by wire dose anybody no if this will work on corvette and how

1) Don't try to convert to cable drive. It is possible but it will cost a fortune and will ruin the car for street applications/legal emissions.
2) The standard FAST 90 mm throttle body often gives surge and rough running problems. There is a modification involving drilling a hole in the throttle plate, etc. If you go this route anyway (you'll regret it) find a shop that knows the secret and have them do the mod -- takes 5 minutes.
3) The 90 mm Throttle body will actually hurt performance unless you have some serious mods -- a really great heads and cam kit of over 405 cubic inches, turbos, etc.
4) you have to have a 90 mm intake manifold to go with it, too.