You know, some of you should check out stuff a little better before you start calling somebody fake. Porno Joe is correct, they did badge several trucks 350SS in the 90's they were the same as the 454's except they only had a 350. They upgraded the computer chip to make them produce a little better, too. I should know, I worked for a GM dealer back then, and I have one. It has 260K on it now, and still gets 17-18 mpg. The conversion package was done by Show Trucks USA in Texas.(Out of business now)
