I have about 10 tanks thru the engine now and I go to do some tuning. The HSN has to be at 4 3/4 out to keep the temp around 230. This is way richer than the specs call for. I am taking the temps after a good run and aiming the infra red down onto the head. Am I doing something wrong or is this normal to be so rich compared to the specs. Does only having one head gasket raise the temp this much? I am using 30% nitro with 20% oil for the first gallon. I would think the extra oil would help cool the engine. Any Suggestions?