6pac Those are some more great times. That is about what my Gonkulator computer showed, a gain of about .15 sec and 1mph+ or so on unhooking the muffler. That air cleaner looks pretty big, I doubt if any of the gain was from taking that off.
I calculate your engine at Torq 258 at 2700 Powr 172 at 4200
Seeing the car in the 15.60s at 83+ shows what you can do with a light car, a good setup, and no accessories to rob power. Now I am extra anxious to get my 292 in my own car.
