A friend has a 1971 Country Squire wagon with a 390 and he's getting a miss. It had been sitting for 10+ years we're begining to suspect it may've been parked because of this miss. It's not a hard miss but it is noticeable at idle and in higher RPM. Everything's stock. All the basics have been...

hi all I'm new on this forum ,and need some help I have a 71 galaxie Hearse with a 400 running a 600 holley . The holleys new , the dizzy is electronic and new , plugs , leads and fuel filter all new . Car was running well and then developed a shudder and Missfiring .. it now backfire's...