[jbgroby]

I know on my 305 V-6 engines, the early models came with a smallish 4 blade fan. When I upgraded to P/S I went on the hunt for a 2 or 3 groove pulley setup and that came with a 6 bladed fan which is strange as the position of the blades not spaced evenly, but it is balanced.

TRY that with a ceiling fan........