RE: tower hobbies glow engines
Don't waste your time shopping for glow engines. Go with OS but remember they sell good and better engines. The LA series are good rated and the FX are the best. Shop on RCuniverse for a NIB model and don't pay the asking price. Glow engines because the cost of fuel is so high are being replaced by gas powerplants. Don't buy a used engine I have been down that road.