In reply to # 3861163 by mrmg1965 What diff are you running? I’m pulling 3700 at 70 with my rib case and a 3.9 diff. I have a 5 speed on the shelf waiting for funds to buy Gerard’s kit... but if I only gain a couple hundred RPM, I might leave it be.
Diff is the stock 4.22. Tires are 175/70R14. I find the gearing perfect for where I live, high elevation with steep grades. 4th will pull most grades, 4k in third will climb anything. My motor seems to settle in at 3500 and feels smooth and happy.
I've got a 5-speed and one of Gerard's kits to go into my Bugeye when I finally get there. On that one I will use a 3.9 diff due to the smaller wheels/tires (Morris uses 14".
Drew's RHD Garage: '59 RHD Bugeye, '66 RHD Morris Minor, '70 RHD MGB -- yes, there's a pattern here...