Depends. Is ur motor in front of or aft of the CG? By "pulls hard right" do u mean it rolls or it yaws to the right?
If it yaws try putting washers between the motor and motor mount on one side. Which side that should be depends on where the motor is relative to the CG. If that doesn't help something's wrong with ur airframe.
If it rolls it can't be the motor. The worst thing a misaligned motor can cause is unwanted pitching and yawing, the latter MAYBE resulting in a little bit of roll due to one wing going faster and thus producing more lift than the other.
It flies in a tight right bank under power
But glides beautifully straight so pretty sure its thrust line
What gets me is (as looking from the rear ) motor runs clockwise so prop torque means it should pull slightly left (like all my others )
If iam pulling right which way do I shim my motor in a pusher set up (motor behind cog)?