Cobras aren't fast, that's not what makes them special. It's being able to MAKE them fast, that's what its all about. Are you even pullied? 390 HP isn't that big a deal when N/A V6s these days are pushing 300+. 500+ then you can start getting disappointed when you lose.
First of all, anything that runs 12.7' 12.9's stock is very impressive.
Yes newer V6 cars are getting faster but with all the weight it doesn't account for much.
Lastly, the Termi's are factory under-rated and usually dyno 360-375 rwhp, meaning they are really 410-430hp.