According to Wikipedia, they didnt offer a manual for the 1989 IROC 350 engines because it was "over powered for a manual transmission." This doesnt make sence to me, because the C4 Corvette's (also 350 engines, but more powerful) were offered with 4 speed manuals.

I looked, but was unable to find manual conversion kits. Can anyone help with this?

If there is no such thing, I wouldnt mind swaping out a 305 with manual, with a 350 and hook up a stronger manual tranny. Does this seem plausable?

(Sorry for my spelling... my built in browser spell checker isnt working)