Yes I have
The first Extech race prepped engine that I have not touched the settings on was EB mod, Ed Bridges, modded and race prepped hence the carbs were set to his dyno tune. I had an email from chad saying he now breaks in the Extechs now and leaves the carb rich. My contention is if it is broken in and race prepped dyno tuned it should have the settings that it was tuned with, why reset the carb and make it rich? I have 2 EB Mod engines and put it in the car and break in 20 mins and then race with the same settings
I am disappointed bec I thought it would be the same Extech .21 race tuned engine like I had bought before. So spent more money on just being broken in, tuned and reset to rich, this does not help me and this is not what I expected hence the frustration right now. Evenmore bec I have a big ROAR race this sat where I will drive 2 1/2 hr to race this engine but will be breaking it in and tuning it over there
EB mod engine that were dyno tuned were very crisp and fast, I did not even dare to touch the settings because they were like butter, I could not do a better job if I tuned it myself for a few weeks.
So what are a good starting point for this engine. I tried the rich settings in the instructions and was still way off, tried the tuned settings and were too lean, so I am at a loss right now. Temp was 220 after running half speed 5 mins.