Dougs or TTI Headers?

Hi All,
I have no experience with Doug's Headers in an early A-body...but I have installed TTI's in my '65 Dart/360/Keisler 5 spd.
There are many issues (read problems) to be overcome with this installation. One recent problem I have encountered is with the powermaster "infi-index" starter.
While doing some routine maintainence on the car, I noticed that the starter was VERY loose. Closer examination revealed that the two allen head screws holding the steel index cone within the starter flange had loosened.
Once the steel index cone begins to move in the mating aluminum starter flange, a burr is formed on the internal circumference of the starter flange. This will prevent a simple retightening of the index cone. The burr must be scraped away before the index cone is reinstalled.
After installing the steel cone, torque the two allen head screws evenly with the appropriate metric allen wrench (torque specs appropriate to fasterer size). Then, use a small torch to heat up the aluminum flange to approximately 225 degrees. The aluminum flange will expand (as it will under normal engine operating temperatures) and you will discover that the allen head screws must be retorqued. Retorque them, let the flange cool, and reinstall the starter. Hopefully, they won't come loose again.
One of the scariest problems with this starter is the difficulty in installing the upper starter flange nut, which is an 11/16 short height nut threaded onto a 3/8 allen head set screw (acting as a bellhousing stud). With headers installed on the car, it is very difficult to properly tighten this nut with an ordinary wrench.
I am making my own special short height 12 point nuts to solve this problem. They will require the use of a 3/4 inch 12 point box wrench which has been ground thin enough to allow it to slip over the nut. The object is to be able to remove/service/replace the starter with some degree of efficiency.

So how many times have YOU bought aftermarket parts that really worked as advertised? Take care...
KenAbody