Not at all, Don! I always value your opinion. You told me it would be fine with the Fel-Pro gaskets, but since then my friend offered me a free set of 346 heads. I just figured that if I was going to pull the 516 heads anyway--to change the head gaskets--maybe I might want to put the 346 heads on instead? I read once in Mopar Action that this would produce an extra 30-40 horsepower, which sounds too optimistic. Sean Don Dulmage wrote: > > > I guess It would be a waste of time to re express my opinion ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.