I've been running my Isspro right and my Edge Attitude left for a while (until my Attitude crapped out). The left seems to run cooler and cool off faster (but that could be a characteristic of the Attitude LCD display versus the Isspro electro-mechanical gauge on the cooloff). Others have reported seeing a similar temperature mismatch on the left, and it's assumed it has something to do with the restriction at the rear of the left manifold. Haven't heard anything from anybody with the new BD left manifold replacement. I'm waiting for my EFI live software to arrive and probably will be going without the Edge soon. I was planning on pipe-plugging my driver's manifold and going A-pillar only. I did see a very neat twin-needle pryro gauge somewhere a couple years ago. That might happen someday in the future.
Too bad it starts at 600 degrees, but the 1000 to 1200 "caution" range is right in the middle, so it would be easy to see at a glance that you were getting hot if the needles were above level, and it goes to the 1600 max that many of the "big guns" are hitting with stacks and drugs.
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