So the testing stopped pretty quick. The inline post does not fit. I had originally thought the interior was hitting the shaft of the motor but after grinding the shaft off the motor is still hitting the interior. I do not want to grind on it before I get a ruling on it. I will be at the track tomorrow with the car if anyone wants to look at it.
On a side note if the McLaren requires an anglewinder this is will be a F40 spec series
"If everything seems under control you're just not going fast enough" - Mario Andretti