When we built up John's 261 late last year, we discussed the exact same scenario, and decided to reassemble it "as designed" without converting the timing cover to "front only" bolts. I really doubt if it will make much of a difference.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!