Timing Chain Tensioner

I ran one, the guide broke in the middle, it was NOT worn through! and the flat spring started to eat its way out through the cover. I won’t use one again, but there are smart experienced people on both sides. You just have to roll the dice. Everyone agrees to get the BEST timing set you can. I run rollmaster billet sprockets and IWIS chain. Your chain may be a standard length and the block could have been line bored a couple of times? They make slightly shorter chains.