A few years ago I would have said to re-gear for sure. Recently though my kid slapped a hand-me-down Weber 38 on a later model 22r in his '83. The thing has so much more power than I am used to I can't even believe it!
He is running 4.10s with 33s and it will pull on my hot 20r with 5.29s. Actually it runs circles around me.
So armed with this new and disappointing experience, I would say to try it out with the 4.37s. Be sure to let us know how it goes.
If you aren't happy re-gear later.
