I know this question has been address in different ways for years. I have searched the board and I find a lot of different info and when I go to Webcamshaft.com I get only one cam listed and it confuses me about the lift numbers. I see a lot of cams listed for the CRF150F and they show specs of .326+ lift and then I see listed numbers for CRF230F and they spec lift at .300 and others list the 230 cam in the .280 range for the performance cam? Is the CRF230F cam supposed to have lower lift than the CRF150F??? I am looking to do the following mods only to my engine. CAM Shaft - for all around performance. 30mm XR250 Carb Powroll 10.5 Compression piston or BBR 240 Kit (If needed for the cam) I would like to just do the cam and carb if it would be a good match with a stock piston. I will do the piston if it is a big improvement. So, what part number from Web is the CRF230F all round performance cam that uses stock springs?