I'm currently assembling a SIG Somethin' Extra and plan on putting a Magnum XL .61RFS in it. I don't have the engine yet and I'm to the part in assembly where I need to put the throttle cable tube in place. Does anyone know where it should exit the firewall? If you're looking at the front of the plane and it has the two piece SIG motor mount, where should it be? No guesses please, I want to drill one hole.