Aerophile

Ok that makes a lot of sense. Yes the airplane does have speed brakes. Thanks for your help. The next question I have is how much horsepower does Firewall Forwards Horsepower Plus STC add to the 200 HP IO-360? I have found literature in the supplements but none of it comes out and says how much horsepower it has with the larger cylinders. Firewall Forward's websites doesn't help much either.

I recently partnered up with a guy who owns an M20J-MSE and have been doing some instruction in it. The airplane is equipped with gravity fed aux tanks. Now, the placards on the airplane say that each aux tank has a 14.5 gallon capacity. The supplement says that the aux tanks add 34 gallons total, but it goes on to say that each tank has a 14.5 gallon capacity. So my question is, where is the extra 5 gallons?