Jerry Hey wrote:

Paul.   The Barry Mount centers are 20.5 inches apart. The Barry
mount holder center line  is 2.5 inches above the oil pan rail.  The
holder is driven downward as the MMP is made narrower by the need to
clear the starter.

It is very difficult to trace the runners because they wrap the
muffler somewhat.  Is there any other way to get the information?
How about a photo with measurements?

If I had used the full width MMP the exhaust runners would have fit
inside  the motor mount tubes.  That is what I would recommend for
anyone else.   The cowl has to be that wide regardless.   Also, if
the first part of the exhaust runners  from the flange to where they
turn downward were angled up  (opposite the way I have mine) or even
straight out  it might be possible to get the full 32 inch length.
Jerry

A photo would be good if you can establish a horizontal center line
through the muffler with a piece of string or rod and put the camera lens 
right on the center line in front of the muffler. A couple of jack 
stands work well for this purpose. Put a yard stick next the front 
lower bends. From that I can scale the bend radii.
Also measure up from the floor to the rod and horizontally from the
rod to the center line of the aircraft. Takes longer to describe it
than doing it.

This photo is close to what I need.

PHOTO TIPS:
Photos will look better with a screen in the back ground
blocking out the extraneous details of the shop. A sheet hung from a T
frame would work well. Hard to see some of those details some times.
Don't use a white sheet. That shuts down the auto exposure lens. Use 
beige or some other soft color. 

Paul Lamar
 
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