X2 on the 3.44 R&P with the stock gears (.93 4th). That's what Bridget runs and, once again for those who missed it:
1st gear is perfectly nice--neither too stump-puller nor too long.
2nd gear allows for impressive acceleration through 60 mph.
3rd gear will take the car to about 100 mph (if I want to be stupid) at the 6000 RPM redline.
4th gear gets 70 mph at 3000 RPM. (80 is still under 3500). If I were not convinced that my car would go airborne, I could leave the go roller down in 4th and see how close to 140 mph she would get. It is my feeling that she would not get much past 125 at best. That's plenty fast for a fiberglass body on a 50-year-old pan, with 165/r80s at all 4 corners. . . .
The RPM drops between all upshifts are comfortable for the stock Subaru 2.2 and, it would appear, would be also for any knowledgeably breathed-on 2110 or larger Type 1.
Would a 5th gear be sweet? You bet! But at $3,000+ (vs $1,100 or so for the trans I have), seems an extravagance to lose 300 or 400 rpm at highway speeds.
As they say, your mileage may vary. But I'm gonna remember these ratios in case I ever have occasion to build another, similar car. The $-to-usefulness ratio of this very simple rig seems hard to beat.