Comp Cams XE262H or XE 268H

I am in the pocess of assembling my 340 for the 4-speed Challenger. I originally wanted the XE268 because I thought the rear was a 3.91 unit. I have discovered it is a 3.23, and I think the 268 may be a bit too much for the car. Will the XE262 with its shorter lift and duration be a better choice? Not going to be a hot rod, just a nice driver. Opinions appreciated. Thanks!

XE262 .462/.470 218/224
XE268 .470/.480 224/230
Author: R/T 71