IO-390 RV-14
I have a very similar aircraft with about 300 hours on her. A standard IO-390 with Hartzell blended airfoil prop and the SDSEFI system. I run my ROP advance 23BTDC which is very close to where you have your PMags set.
My takeoff/climb procedure is very similar to yours in that I pull the prop to 2500RPM (only to make people on the ground happy, think about the noise). I only reduce throttle if I intend for a low level off altitude. I do use the target EGT method described by DanH above. I tend to cruise climb between 125 and 130KTs It has been a while since I calculated a Carson Speed, but I think it was in the 125Kt region.
I Believe you have another thread with performance data for 100ROP at various altitudes (I lost that thread). I tried to compare it to my aircraft, but most of my data is for higher altitudes than yours. I had trouble staying below the yellow arc on the airspeed at lower altitudes because I only record data at WOT. I have found I can get very consistent CHT and EGT (per cylinder) results at WOT, but partial throttle causes them to move around a bit. It may be a turbulence issue on the intake side.
I gave up on ROP cruise data fairly quickly. Basically 100ROP gained a few knots for a whole lot of fuel. I tend to run in accordance with the Lycoming recommended peak EGT or I run LOP and advance the ignition farther than 23BTDC. One thing I did learn during my testing is that the EFIS algorithms for finding peak EGT are great as a learning tool; however, I can get another 2 to 3 KTAS by adjusting the fuel flow VERY SLOWLY and finding peak manually. By slowly I mean give it a good 30 to 45 seconds between adjustments. I really need to go back to some old threads and rerun the data I published with manually adjusted EGT.
I have a chart with power/altitude/speed/fuel flow at home (I’m at work for a week). Will you be at Air Venture? I plan to be there all week.