Dick, Welcome to Inliners. If the book you bought is by Leo Santucci then you at least got
much valuable info there. The resident expert on 250's here I think is Twisted6/Novaman. He has
posted valuable info with great cylinder head pics on his site along with info on his race team and business. You can find him in many posts.Good Luck with your project and we all like to keep up with your progress and many others here will gladly offer help.
