[Kurt in NJ]

Anytime I try to drive 45 i end up over 50----the second day after I rebuilt it I knew it would go 67, I have original stock head, no overdrive, have driven over 65 all day ---been trying to break it for the last 30 years ---now that the 50 year old tires are almost bald I am putting on radials ----and perhaps a columbia ---I think 67 is something like 3200 rpm, soon I plan to go through it and will expect 70---and I think there is a 75 on the dial I hope to see