Thanks for the prompt responses. But I am still confused because several sites have info indicating that the L28 makes less HP!? For example this one: http://www.datsuns.com/datsun_dept-mainpage.htm and this one: http://members.aol.com/KarlWS/zhistory.html "1975 - Needing increasingly complex technology to meet even tougher emissions regulations, Nissan boosts the Z-car’s displacement to 2.8 liters and adds a version of Bosch’s L-Jetronic fuel injection, creating the 1975 280-Z. Horsepower rating is increased to 149. " Excuse me for being redundant, but I would like to obtain accurate info. Also,, does anyone know the weights of the 240z and the 280z? A link with some comprehensive info would be greatly appreciated. Cheers, Art (in San Francisco, hence SFART)