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I am going to add an A&A P1SC to my 99 C5 within the next 12 months. I want gears. Am used to 4.11's on my N/A cammed, LT'd, '97 WS.6 and am dying to upgrade on my C5.
What gears are you running? 4.10? 3.90? 3.73? 3.42?
I run 3.73's with mag and 450tq @wheels at 2400 rpm. It's a wonderful gear and I think the perfect FI gear. I just switched to drag radials on the street and have seen a phenomenal inscrease to grip. Before running them I would have said 3.42.
I serisouly think it depends upon the tire you intend to run.
I have a 408 with a F1R and 4.10's. I got the gears long before I thought I would ever do a blower or two motors and two blowers. I actually loved them with my 348 and D1 but now with the 408 and F1R it is pretty stupid. When I brake the rear end or have some extra cash around I will go with 3.73's.