I'll second what Dwain says. I have a 2r5 with the champ engine, 3speed OD, and 4.88 gears in the back. 60mph is comfortable. OD gets kicked out for hills and it will pull the hill around 50mph. Without a more powerful engine than a stock champ, I think the 4.88 gears are about right.
Posted on Apr 20, 2017, 11:31 PM from IP address 126.96.36.199