I'm not sure exactly what the previous owner was upset about but the current owner is going to be happy at the track. He has a Monte Carlo that currently runs in the nines with a 780 hp big block. This engine will be a little lighter due to the aluminum block, and it has 140 more hp. He runs in a 9.00 to 10.50 bracket class and he wants to have the most MPH at the stripe so he is stepping up to this engine.