I think we all missed the boat a little on the first question.
I know all about the longer dwell time and I have read all the books there are on rod to stroke ratios.
I wanted actual dyno sheets that prove or disprove the longer length rods are better in a lower rpm situation.
I am in the process of rebuilding my 383 for a second time.
We build a lot of circle track and street/strip engines, most of them will get longer rods.
What I am after is if anybody has built a 383 with 6" rods for pulling - tow rig, and has done a dyno to see if the added .300" was a help or not.
I know at 5000 rpm it will help, but lets face it, I only have a 25 gallon tank, and the track is 90 miles away.

Just trying to compare other builds to my original one.