Comp Cams or Mopar Perf Timing Chain??

The tricky area is the oil pan. As to the timing chain tensioner. Years ago I had to make the same decision and I had two conflicting opinions from two very smart small block mopar engine builders on whether or not to use a tensioner. I decided to use one, and I feel first hand reall world experience is the best. I will not use another tensioner. Took the motor apart to change pistons and the spring side guide was broken right at the pivot, the flat spring had fallen down below the bottom sprocket. It was not worn through. With small block mopars the cam/crank center lines make for a long chain. I put a billet sprocket and Iwis chain. the chain will die before sprockets. You can put a block of wood between the bypass nipple on the intake and the top center bolt boss. Then use screw driver.