CAM selection 318

Wide so you don't send your air/fuel charge straight across the piston and out the exhaust, at split overlap.
the 6901, from my research is;
276/288/114/54* overlap; and 218/228@.050 as you can see the intake ramps are 58* from .050 to advertised........... but at it's advertised, it is still far from closed. And while that might not matter when normally aspirated, if you add say 7* to the intake opening and 8* to the exhaust closing, then the overlap becomes 69 friggen degrees. That's a big window. I have no problem thinking that cam could be a 291/304 seat closed to seat closed.
That works at the other end too. Let's say that 6901 was a 291/304 seat closed to seat closed and say you installed it at 111.5 Then your events would be;
291/302/68.5 overlap/103 compression/92.5 power extraction. The Ica would be77*, which off-boost and below about 3500rpm would make for a very doggie 318, because of the very late closing intake valve, combined with the very low dynamic compression ratio.. At 77* the piston is already quite a ways up on the compression stroke.
But worse is the power stroke, which opens the exhaust valve at 92.5 degrees down ; in other words the piston is just abut half way down and the exhaust valve is already opening. Such a cam with locked timing, at part throttle/off boost, would be very hard on gas....... not that it would be any better on boost,lol.