A-833 2.47 1st gear change to 3.09

I have the Commando and 3.55s. Take-off is a dump-it and go deal.
That is to say, with the factory heavy flywheel, with a gentle blip on the throttle, I can just dump the clutch, no gas given, and the car will motor ahead at anywhere from 3.5 to 4mph depending on where I have the Idle-timing set on my dash-mounted, dial-back, timing device..
However, My engine is set-up at 11.3 Scr and pumps over 185psi. It will willing idle, and pull, at just 5* of Idle-Timing. and it will easily take throttle with no bucking, no hesitation, no flatspots, no tip-in sag. That is what the difference from low-pressure to 185psi, can do for you.
At the other end I cruise with the GVod at 65=2240 rpm, with the Cruise-timing set to about 53*, and the throttle barely open.

This combo would be fine with the 2.47 box and 3.91s and the overdrive, but, the cruise rpm would jump to 2470. Second gear would be 6.92, compared to my current 6.82, so Second gear would feel exactly the same. But with the close-ratio T/A trans and 3.91s, blasting thru the gears was insane!, lol.
I traded that T/A for a 3.09 od box straight up, so I could split gears with the GVod
My new ratios were;
3.09-2.41-1.67-1.30-1.00-.78od-.55od, yes SEVEN useable gears. and 65=1550rpm/85=2030
Check out the splits; .78-.70-.78.-.77-.78-.71
With over 350hp on tap, this was outrageous. and I ran it like that for 4 years, with rear gears up to 4.88s. Finally I realized that 7 gears was at least two too many for a street car, and 1550 was too low an rpm to cruise at for economy with a 223/230/110.
So when that cam dropped lobes, I went to the next bigger, and dropped in the Commando/GVod. Now I have 5 progressive gears with the option of splitting 2 more. However, the new cam makes enough power to go 93 in the Eighth, splitting the first two gears, and so, fuel economy sortof took the backseat. and the cylinder pressure took a lil hit.
Some people think that a .78 overdrive gear is hardly worth bothering with, bit first off , with 3.55s the cruise rpm ratio becomes 2.77, and 65= 2240rpm. and
Secondly, I shift into od after third, so my ratios are
3.09-1.92-1.39-1.09-.78od, and so the splits are;
.62-.73-.78-.72od, so in this way, .78 becomes .72, about on par with the best of the rest; and I really like the short 3-4.
what I like to do when hitting the hiway, is to rev it to just 2800/3000 in each gear. This brings me to 62mph in third over, and then I drop it into 4th over, and lazily bring it to 65mph, and when I get there, I crank in some more timing, from the driver's seat.
Then, at 2240, and 53* of timing, I know the fuel-economy is gonna be the best that it can be. On long trips, I dial in up to another 10 degrees, depending on if she likes it or not. Alloy heads seem to love cruise-timing.
I'm not bragging on the combo, I'm just telling you what I did.
and btw with double overdrive and that smaller cam, on one non-stop day-trip, point to point fuel economy hit 32mpg US.
Now some guys will decry that, and again, I'm just telling you what I did, and it was common for that combo to sail that deep.
Your cam has the potential to get close to that, but the fuel-economy is in the complete combo, which in my case included a 3.58 stroke, and pressure pushing 195psi. IIRC.