The pullies are worth the money and they are one of the only mods you will ever do for $100 that you will actually feel the increase in the seat of your pants. If you have trouble with the charge being too low keep the stock alt pulley on.
ASP does have the cheapest pullies and they look great and work just as good as the March or FRPP but I do favor the polished Marchs..thats just personal preference though
Now I think the Ram air does help as it focuses nice cold air "at times" into the induction system, instead of it swirling around in the fender. I made my own ram air, first I had the scoop type that I made from Stainless Steel and polished it. It looked great and worked fine but after a ground hog took it out for a second time, I deceided to put it in the fog light opening of my car since the fog lights were long gone. This I liked it was further off the ground so you were getting colder air then the scoop which is closer to the asphalt. Now I am in the process of making my own "Power Pipe" but mine will connect to the ram air set-up I have to focus the air to the filter.
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Check Out My Site 91GT,Holley SysteMAX II Kit-Heads 2.02" x 1.60" port matched to a 1262,Anderson N-61,24#,76mm C&L,Full MAC, No A/C or PS or emissions, 12" K&N Filter,RNH PERFORMANCE Ram Air,Ron Davis Radiator,Full Suspension, SPEC stage III clutch, Lakewood SFI bell, S&W 8pt "X" brace,JAZ seats,3:73's,Welds..etc,4:30's and 31 splines coming very soon!
[b]12.16 @ 113.5, 1.78 60ft..no traction in the 90 degree