Pinion angle question.

If the car is level then the top of the carb should be level too because the intake tips the carb forward to make up for the motor trans angle. Full weight should be on the rear springs when measuring the pinion angle. However much the trans angle is mismatched to the pinion angle at cruising is the amount of vibration you can expect and the amount of u-joint wear you can expect as well. It can also wear out the yoke and trans bushing. If you're getting that much spring wrap up then you need bars.