I did a bit more research on drivetrain options. I think I decided on a borg warner Super T-10 with a 2.73 or a 3.08 posi. That makes my ratios come out perfect because it gives me the option of having a tall rear end but short gears in the tranny to even it out. My first gear in my 3 speed saginaw was great with the turbo with my stock 3.23 rear end. My final ratios with my original 3 speed and a 3.23 are... 3 speed saginaw w/ 3.23 - 9.20 5.43 3.23 But they make a short geared BW super t-10 which has a 3.42 first gear so with a 2.73 that would make... 4 speed super t-10 w/ 2.73 - 9.34 7.80 3.99 2.73 Which gives me a great first gear, a good split of the second gear on the 3 speed, and a 4th gear which is basically overdrive. So that's better than the muncie OD even with a 3.53 which would make... 4 speed muncie OD with 3.53 - 7.76 5.32 3.53 3.03 Which gives me a terrible first gear, not much of an overdrive, and 3rd and 4th gears which are too close IMO.
So the super T10 with 2.73 would give me everything I'm looking for plus, from I've heard, a beefier trans than a muncie. Plus that 2.73 final puts my 70mph on 29.1" tires (bfg t/a radial 255/70R15) at ~2250rpm which is perfect for highway driving. I've found super T10s like this with this ratio for $800-1200 so it's doable and cheaper than a new muncie OD too. Also that means I don't have to find $3000 for the gearvendors.
Thanks for the prices. That's still cheaper than garret and turbonetics new so I'm not complaining. I'll go ahead and buy the normal turbo with oil because it's already plumbed for it anyway. Save myself $500 in the process.
Lastly about that auto swap... I just can't do it. I will keep this car a column shift until I die. It's too unique and permanent to switch to an auto. And nothing gives me a bigger smile than banging gears in a turbo car!
69 Buick Special Deluxe. Intercooled Turbo Chevy 250 @ 15psi on a stock long block. It's kinda fast.
