G-10, The pics were of a grouping I sent to Ron of a lot of the "stuff " I've collected/used/built over the years plus the LSR stock head GMC engine I'm in the process of assembling. From what I remember the duration at .050" was only a few degrees.
216.158 MPH 12-Port 302 GMC on 70% 171.0 MPH 302 stock head on gasoline 7 years later
