Anyone with a 289 and 4-Speed Toploader?
What rear end gears are you running and at what rpm on the highway?
I have 4.10 gears in my 289. I'm running at 3500 rpm at 60 mph, 3700 prm at 65 mph and 4000 rpm at 70 mph. I may go to 3.73 or 3.55 gears...
Any thoughts?
