I just got the latest Dirt sports Mag. March 2012. It has a very good article on the ecotec engines. With all of the engine option ( LE5, LE9, LAF, ect) Which is the best engine to get from a salavge yard for a class 10 car? I was thinking that the LAF 2.4 would be the best option. What is everyone else running? Thanks for the help?