this link has all your gearing answers. 235 or 250, 261, 292, it really does not matter.
you may have an issue w/ the 235 bellhousing.
do a search about that topic... there is LOTS of info once you learn to ask or do SEARCHES on topics. this has been covered many times over.
good luck & welcome to the bolt site
http://www.stovebolt.com/bboard/cgi-bin//ultimatebb.cgi?ubb=get_topic;f=2;t=010333;p=1#000000