Awhile ago, I replaced my stock fan with a flexlight(?) set up for better cooling on my '78 cj7. While it did help my cooling, the added noise under acceleration and higher rpms is a bit louder than I would like. Saw a thread saying some thing about using a stock H/D clutch off a large block Chevy for improved air flow. Anyone used this setup? I am not ready to go to an electric fan set up now, as I have previously not had any "serious" cooling issues. Just trying to keep things cool with a v8 under the hood on 100 degree days.