Originally Posted by A/MP
I just want the overdrive to kick down my 4.30 gears. I'm attempting to build a very stout strip/street car that I can drive to the track. I'm also looking to the future and a pass down the Texas mile so there will be power applied to the overdrive but not in the 1/4.

Is this for a big block if so what is the plan on the transmission case to adapt to it

71 demon stock stroke 440/indy ez-1 running 10.10 @ 132.14 mph in the 1/4 and 6.36 @ 107.46 mph in the 1/8 not in the same weekend but It did it then I sold it.
67 Belvedere that worked it's way in the 10's