I tell you what;if you don't already have 'em, just install some 3.23s,and up your stall rpm to in the range of 2500 to 2800; and you'll forget all about 3.73s. I love the 2800; it has a nice zing to it.
Let me paint a picture for you. These figures are just an exercise.
Say your engine makes 140 ftlbs at 1800, a typical stall number and you have an A998 with a 2.74 low gear, and 2.76s. When you floor it, the TM (Torque Multiplication) to the rear axles will be;
140x2.74x2.76=1057ftlbs, kindof ho-hum. But let's factor in the convertor, which might have an instantaneous TM of 2/1 and a sustained TM of plus 5%. So then your numbers might be ;
140x2.74x2.76x1.05=1112, and the instantaneous might be lbs 2117 , still not impressive.
Ok so now let's swap to 3.73s.
140x2.74x3.73x1.05=1502 with an instantaneous possible 2861, so that looks pretty good; if it squawks a tire it will motor pretty good, but if you have a limited slip,it will be a while before it gets up on the power
Ok so let's back up to 3.23s, and increase the stall to 2800 where the smogger might put out 240ftlbs.
240x2.74x3.23x1.05=2230 with an instantaneous 4248@ zero mph, see now that's gonna spin both rear tires and you are gone!
Ok but if the 2800 is so good, what does it look like with the 2.76s? Glad you asked
240x2.74x2.76x1.05=1926 with an instantaneous of 3669, pretty sweet looking, and spins both tires as well.
So why did I recommend 3.23s? cuz 3.23s will get you about 60mph at 3900rpm, about where the 318 cam power-peaks. So that would probably get you the lowest ET possible in the zero to 60 time-trial. Whereas the 2.76s will hit 60 at about 3300, not very impressive.
With 3.23s ;65~2600rpm
Of course if you have more than a smogger 318, everything changes.
Just something to think about.
EDIT;
just to re-iterate, the 140/240 numbers are fictional numbers I pulled out of a hat, just for this exercise and demonstration purposes only..... altho they might be close.
I guessed 140@1800 cuz the secondaries are not likely to open at that low an rpm.
I guessed 240@2800, cuz you can get your secondaries to at least be partly open by then.
If you have a DP carb, you can force the secondaries to be open at 1800, but a Low-C engine with 2.76s will probably just bog. Even with 3.23s, I doubt it wouldn't at least lay over for a bit. With the 2800, a DP is or can be awesome, if it's properly matched to the engine size.