I had originally written that line as ‘They’re REVVING the engine,” but when I put the text into the word balloon the word looked like REWING and I couldn’t make it look right.  I figured I’d be spending a lot of time explaining to confused readers what I meant to say, then I thought of using the word GUNNING instead, and it fit in nicely. It’s much more of a dynamic verb, and it sounds a lot better in this context…. Don’t be surprised if there’s a lot more gunning of engines in the future.
AND they’re gunning the engine in a 1975 Ford Mustang!!!
WHOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
If the henchmen gig pays well enough, they probably also have a 454 engine dropped in under that hood. That would be the biggest motor they could fit into a Mustang’s engine compartment without modifying the frame itself. Modifying a car’s frame is darn-near impossible without compromising the car’s structural integrity.
Of course, there’s also the possibility of some super-tech power plant in there, but most henchmen don’t ket paid *that* well…It would take some super-science/engineering for something like that & in such a case, better to just design the car from the ground up.
Ford product placement!