Your subframe connector wher eit connects to the front rail - did you add any reinforcement at that attachment point ?
The little "stub" that comes off the main rail, ie where you have attached your subframe connector , is a very thin weak piece. I would add an extension or some kind of gusseting system to attach to the real frame horn. If you design it cleverly, you can reinforce the curved/bend area of your connector to make up for the weakness of a bent tube as well. Should only cost you about 4 lbs per side, 8 lbs total.
on edit: I took a closer look , it does appear you may have done some reinforcement there already. That "stub" is almost tinfoil thin compared tothe frame horn normally.
Brian Hobaugh SCCA National Tour June 2014
First Hemi 'Cuda Convertible Ever Built
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