Roller Rockers 1.5 vs 1.6

T/M Mike,
Post #43. It is simply incorrect, as I tried to point out earlier, to say the V/P clearance will never get less than it is at TDC.
This is from my Isky catalog p. 197, section for checking V/P clearance: 'Caution: Check V/P 5 to 10 degrees on either side of TDC because in some instances [ due to piston dwell & valve velocity ] the valves may be in closer proximity to the piston when slightly off from TDC.'