I am only guessing but I would expect that two cylinders would be at or near their peak lift at that point possibly #4 intake and #7 exhaust. Someone else will have to provde the definitive answer.
1966 Comet Caliente, Survival Motorsports 445 Stroker, Custom Comp Hydraulic Roller Cam 287/293 236/240@.050 .594/.598 112°, C6AE-R 2.09I/1.65E Iron Heads, Blue Thunder 2X4V MR Intake, Barry's Custom 750CFM Carbs, FPA Headers, 3 inch Pipes w/ Magna Flows, Wide Ratio C-6, 3000 Stall, 9" w/3.89's