Hi All! Waiting for the exhaust to come back from Jet hot coating to be able to test drive. But I did do some testing on the SD40 carb on this ‘67 LV build and WOW what a difference in running these adjustments made. I drew an un artistic drawing of what I made for adjustments to the step up rod height. I can’t wait to get it out on the road and test my results but I can say with it running and reving in my shop BIIIIG improvement! I ended up with a measurement between those two measurement points of 52mm.