4 speed ka-booom !

I did close to the same thing you are doing now with your Vertigate but I
used a 1971 Hurst ramrod.
Used the correct Hurst mounting bracket for the A-body.
As It turns out I would have rather chosen the shifter location myself with a homemade
bracket.
It seems low and more forward than where a comfortable position would be while
racing.
Where the Hurst bracket puts it almost fits the tunnel perfect. About an inch back.
Problem is the lever is short and doesn't curve back toward the driver like a stock handle.
Makes for a longer reach.
Also had to cut into the cross member some to install the strait rods.