I'm loving the turbo slant 170 (draw through). It was obviously done by someone who sort of knew what they were doing but not entirely. I've made some improvements but I'm still trying to figure out why it bounces when coming back to idle. It will idle at a steady 700-800 rpms but when I rev it up (or let off the gas) it dips way down and bounces up to 1200+ and back down a good dozen times before it finally settles. Sometimes it dips so low it stalls. I also have a significant lag time between hitting the throttle and getting engine response. Is this the nature of the long path from carb through the turbo to chamber or do I have a leak somewhere that I can't find? There is an AFR sensor that shows (if it's accurate) my mixture is good so I'm assuming it's not a jetting or idle mixture issue but...?? It also came with a full exhaust and muffler. I'm planning to pull that and straight pipe it to make sure it's not clogging up the works but I'm assuming it's not really having much effect, if any, on performance. Any advice would be greatly appreciated!
