1969 Dart 360, ede heads, air gap, h116 speed pros, scat i beams, stock crank, 60403 voodoo cam, holley 750dp, 273 adj iron rockers, d453's, msd 6al, accel 59301 dizzy.
I had made the swap to a 4 speed a few years ago and swapped back to an automatic due to a demonized oil leak.
With the 2.66 first gear and the 727 3.23's were a pooch out of the hole. 3.91 are just barely tolerable with 28" tires, yet perfect out of the hole.
So I know I want to run 3.23 gears. I don't want to go overdrive because I have an awful vibration in high gear above 4000 rpm's (I'd imagine it would be worse with an overdrive)
Will the 3.09 gear set let me have cake and eat it to? (only thing I'm missing is the dust cover and a tailshaft housing)
Is there a magic torque converter that will fix the sluggishness?
Don't think I can go smaller cam because the compression is already awesome.