Well I went through the plane last night and checked the tank (2 line setup) and the stock fuel line and stock clunk had not soften up as Iexpected. So I changed the line to Tygon and a heavier clunk, I also shortened it a few mm. Doing a static test (tipping the nose) it appears to be better but the RPM's do pick up a bit. However if I increase the idle just a bit she holds pretty steady, I assume this is do to the increase in pressure from the exhaust, cause more even fuel flow. Today I will go to the field and test fly wish me luck!