Dana just thinking of the idle of that engine makes my teeth hurt.:roll:At the risk of perpetuating the thread drift... I never heard of the 3 cylinder inline Pops mentioned. Must have some funny vibrations if the stock crank was used. There have been a few 2 cylinder 1/3 Corvairs, but parts availability and cost and the smaller displacement make them less attractive than half VW engines. There has been some discussion on it here in the past.