Ok, one more try,
 My IV-P cruises at 275 KTAS (true airspeed)
The EA-500 is limited (per the FAA) to 275 KEAS (equivalent airspeed). This is a limit, not the typical cruise.

My horribly written, mercilessly untrue, hateful, phobic, attack, hit job on the poor, helpless, baby polar bear EA-500 was based on arcane, obscure and irrelevant information provided by an impotent, unrelated and unreliable agency (the FAA). What was I thinking?? The information was cleverly hidden in plain site by Hamid's posting of the link. I am so incredibly stupid that I thought could convince fellow Lancair pilots that my IV-P is 100 Kts faster than their IV-Ps through hypnotic typographical juxtaposition.

My incompetence extends to my inability to run LOP and, as a result of this and other ham fisted operational inadequacies over the last 948 operational hours, I have not experienced the joy and satisfaction of cylinder overhaul, ring replacement  or valve grinding, milestones usually enjoyed by better pilots with proper engines. My bucket of bolts recycled Lycoming stubbornly insists on maintaining compression in the mid 70's despite my best efforts. Try as I may, by operating it at 75%-100% all the time, forcing it to run separate from its fellow  IVs over the race course and whipping it to the flight levels, it refuses to succumb  to my will.

I cant even win a battle of wits with an engine.

Jeez.....

I think I will go contemplate my inadequacies.

Is it April yet?

Regards

Brent Regan