Keller clone 2 races since rebuild complete with top plate fuel pump & chain guard have paperwork from rebuild $600 plus shipping Keller flat head with 1 race since rebuild complete with chain guard & loop pipe have paperwork from rebuild $475 plus shipping Keller flat head with races since rebuild complete with chain guard & loop pipe do not have paperwork on this engine was told it was fresh when I bought it & we have put 6 races on it $400 plus shipping