Sounded like he brought the R's up before nailing it. Getting into the power band or spooling up a turbo? Whatdya think?
Years ago I raced a mustang one morning in my 66 E Type. I had him easy through first and second and all the sudden this huge whine came out of his hood and he shot ahead. No idea what he had but it was effective:clap:
Thats like the youtube video where kids cruzin around in theie car with a camera looking to film races they win and got there asses handed to them by a vette.