Quote: FWIW this cam 320 / 320, 288 / 288 @ .050 .691 when installed 4 degrees retarded (@ 112) from the recommended 108 picked up 2 tenths. We were just looking for a little more top end and it worked but what was that telling us?
......could be one of four thing....or maybe two of four things........heck it could be all of the four differing valve events.
just messing , would'nt like to speculate. ........would take a bet idle was lumpy.
I retarded my cam years ago with -1 heads. it picked up as well. my heads were unported. Not enough intake flow for the combo? That was my bet. Doug
......could be one of four thing....or maybe two of four things........heck it could be all of the four differing valve events. 
........would take a bet idle was lumpy. 
