Going to have to disagree. With the cross rams we ran in the past, with a tach drive distributor, it was necessary to move the gear a tooth or two one way or the other so that the tach drive would clear the intake. As long as we moved the plug wires to match, it was fine.

This may sound stupid, but the main question, lack of revs...I'm assuming you have sufficient piston to valve clearance?

"Old age and treachery trumps youth and enthusiasm, every time!"

East Central Director / Chrysler Power Magazine

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