I have a Swinger with a 440 conversion currently running 355’s (28” tires). It runs around 3000 rpm At 60mph. I find the revs high for my liking and the cabin is loud for any distance driving. My ring and pinion are noisy so I have ordered a set of 3.23’s. I live in a rural area so all my driving is 50mph +. I hope to swap them in about 3 weeks. Car makes lots of power (460-500hp). I think I will be happy with them after running 355’s. (Time will tell). Ron D
