tunnel ram update

shifting at 6600 is a bit high for that cam. more rear gear would help by more torque multiplication. a 4000 stall conv. will not help-it will still drop to 4000, a 5000 stall would help. how much ignition advance at 4000? eddy springs and secondary jets will work. adjust primary with metering rods. carbs are 2 1969 625 cfm 340 avs=good