You could also try WFOLarry at http://www.larrysmotorcyclemachine.com/

Or since you have the Dragos pipe already, why not give Frank a call. He does heads as well.

 

Who evers system you are using, if they do heads have them do it.
Because all of their R&D is done by them. All of their components compliment each other. This isn't rocket science either, the people that develop these parts spend alot of time trying to make everything work together for reliability and function and form. I'm not trying to upset anybody just making a statement from my experience that I have had.

 

Like the previous post states, go with the same people who are supplying the 107 kit. Chances are they know what works together and head work is really dependent on cam choice and compression.

 

I did the fuel moto kit last yr no heads was great 115mph all day smooth as hell. Did the heads over the winter. Only got 100mls on this yr but what a differnce. Its fun to compare the differnce but DO THE HEADS. And do a kit. Ive had differnt stuff put together and it dont work.