I was going to say I do not own an Impala but I do have an 06 LT3 that my wife loves. My performance cars are 1970 Buick GSX (12.42 @108,) 1987 GN (currently being sold to my daughter) and a 94 Z28 that I am converting from race car to stock. I am looking for help on LT1 motors and this looks like a good site. I usually hang out at V8Buick.com as sailbrd but not a lot of LT1 info there. Anyone that went to M13 at Stanton this year could have seen my GSX.