Welcome from Dixie Land ! You may not know this but you've just purchased what many have said was the last of the good reliably built Dyna's Harley made . It has the good bearings and the strongest crankshaft so should you modify the engine it should hold up better than later models . If yours has the carb. it will also idle like the old Harley's , new ones have electronic fuel injection that idle much higher . You should upgrade the cam chain assy if it hasn't already been done. If you order the SE upgrade kit it will include the heavy duty high-output oil pump with much much better oil pressure & oil scavenging ability allowing you to lower the idle down to get that potato-potato sound without harming the engine ! Enjoy .