Started by pulling the plugs driven by the left ignition. Turns out these are on the intake side of the cylinder, both sides of the engine. They all looked good. Torqued all 12 plugs. Put the cooling tins back together, cowling on. Went to the end of the ramp for a run-up. Looked good. So taxiied back to the departure end and did another flight (0.4 flight time). Went to 4500' and 150 mph at 3050 rpm. Slowed it down to 125 mph at 2600 rpm and did some turns and straight and level. Noticed a few burbles, I suspect may be air bubbles getting to the carb as others have reported (but the burbles get you going, that's for sure). Pattern was busy on return. New student calling where they were taxiing on the ground, so I never even called final. Just landed behind the guy in front of me who had decided to taxi on the runway instead of turning off. Met Steve who has a C-120 in the hangar next door. He said he spent 13 years building a Quickie way back when.
