you could go to the 2.8" pulley, i've heard a few people have those...but their cars are very heavily modified

 

hey Whizz have you seen a under drive pulley set for our cars that are not S/C?
i would love to get a under drive set or at least a set of Aluminum ones for mine to make it look nicer and run a bit better also.

But first i ahve to get a new T-stat mine i think might be goign or the water pump is it is heating up to much for my liking her eint eh Texas heat.

 

Mickey, your best bet would be a Centrifugal Supercharger or a Turbo. The turbo might be easier on the transmission due to the lag to build up the boost.