2.76 open to 3.55 Sure Grip...expectations too high?

318willrun said
, but remember, when you shift into second gear with 3.55's, the 2.76's are just rapping out 1st gear and at that point, the 2.76's in 1st gear are better geared than the 3.55's in second gear. Same with the 2-3 shift. So, at points during the run, the 2.76 gears are actually at a better ratio.

You hit the nail on the head right there.
but when you said this;,
the 2.76 gears are actually at a better ratio.
I take that to mean at a higher power to the road number.
To OP; read post 12 a few times, until you get it.

Gears are torque multipliers. At any given rpm, adding gear will add torque.
But because the gears change the roadspeeds at which the torque is put down, it will change your rate of acceleration.
Your power did not change. The thing that changes is the amount of time it takes to go from point A to point B, during the run, because ;
1) bigger gears allow the engine to spool up faster, and
2) therefore it spends less TIME in each gear,
3) while putting down more average power per unit of that time.

Too late now; but you shouldda done a few before and after time-trials. Then you wouldda seen it.

If you want more off-the-line punch, with a given engine size, your choices are; a higher tall, and/or higher cylinder pressure; or earlier closing intake valves, which trap more pressure, usually at the cost of top-end power.