In all my years playing with the 206.8 engines, I've never seen any "speed" equipment made for them. By the time all of the hot rodding started (post WWII) the 207 was in it's grave and the newer more modern engines were getting all the attention.
To make it an open drive shaft you might be able to use a 3/4 ton AD truck two piece driveshaft...others will know better than me.
Your 3rd gear will be a 1:1 ratio.
Mike B
