TKO 500 with front shift kit - looking for feedback.

[endlessearth]

I am heavily considering putting a TKO 500 with a front shift kit into my '64 C20 behind a SBC 350. Does anyone on the board have experience with that specific transmission and the use of the front shift kit? I was hoping to get some feedback from those with experience with the swap and/or the driving experience.

My understanding is that using a front shift kit will necessitate drilling a new hole in the tranny cover about 3-4" back from the hole where my SM420 currently exits. I was hoping to confirm that too.

Thank you in advance.

Grant