Left the door open overnight on my 67 327/250 and battery died. Jumped it to start it. It took 2 or 3 minutes of turning the car over for it to start. Now seems to be idling very rough and pings significantly at high RPMs. Anyone have any thoughts? Appreciate your help.
It has been WAY too long since I messed around with vintage engines, but something has definitely caused a problem there. Hopefully someone will stop by here pretty soon to help you troubleshoot the issue.


