Exactly How Do I Install Hooker Headers if Possible

There is usually minimal clearance between the T bars and the header tubes. Being as the car is 50 years old, there is no telling how it's been tweaked over the years. We installed a set of Doug's headers on a 72 Duster 340 4 speed car. We ended up moving and shimming the mounts, as well as putting a dent in one tube to clear the DS T bar.