--- dardal@xxxxxxxxxxxxxxx wrote: > In order to get a proper conversion to the 375 hp > 413, in addition to the cross > rams, you would need to also replace the cam..... > Would a dealer undertake such modifications? Probably not. But then again, would the average Imperial customer in 1961 have KNOWN this? In reality, if an Imperial customer had requested that the dealer add the cross ram manifolds, that customer would most likely have been satisfied by the impressive appearance under the hood. And really, in a car the size and weight of an Imperial, what would be the practical difference? And how many Imperial owners in 1961 would be trotting their new beauty down to the track with a stopwatch? More likely these "sporting" men would be opening the hood at the country club to show off those big red manifolds. Elijah __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com