Overdrive crank pulley?
I don't think they do for the accessory drive...guys that run Prochargers have options, but if the Maggie runs off of the main belt (and I think it does), I think you are pretty much set at 7.5" max.
I have heard of one out there but I cannot remember where I found it. But it may have been for the C5 acc. drive though not the F Body. Best thing would be to change the rear pullies if I find where I saw it I will let you know. 
ECS has one for thier setups. You will have to call them though its not on thier website. Do we use a C5 crank pulley don't we? I cannot remember since I had Ed do the initial install. I cannot remember if the f bodies is the same or not. If we do then using ECS's OD pulley should work.
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Verdad Gallardo After researching, overdrive pullies are made for the gto. Fbody's and GTO's have the same pulley offset. If anyone wanted an overdrive crank pulley for their fbody, they could just order one for a gto.
