I would recommend that he send the carb out and have it converted by someone who deals with E85. There are many out there that are having great results. I just finished up an 8896 dominator for my car this season. Turned out very nice.

As far as the kits the only one that I know available is form Quick Fuel and its a 3-circuit kit. I have not tried using one but did buy the kit to look it over. There are some out there that have used it with success but I hear more to the contrary.

If you have any other questions shoot me a PM.