67/68/69 cuda dilemma

Not feeling it for the sheetmetal workmen the trunklid lately, so I decided to assemble the 318 w my 12 year old son. We spent the afternoon gun brushing all the oil galleries, installing the gallery plugs, and doing the camshaft install. I am going to use a double roller chain on it. Anybody use a dakota 3.9L timing tensioner/thrust plate setup. I'd kinda like to use one of these. I heard they dont work too well with a double roller chain. Anybody with real world results with that setup?

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