[sherlock9c1]

I'll see your ultralite 4L60E mod and raise you an invisible driveshaft...

So you already dyno'd the original headers prior to cutting?

 

[sherlock9c1]

Tad, my understanding was that this wire needs to be open-circuit for TCC lockup to work properly, not grounded.

 

[sherlock9c1]

Stupid questions, but for all that work, how hard is it to just cut out the existing C-channel and weld in new box sections on either side like F-body subframe connectors?