Hi All, A little history first... just installed Edelbrock Performer Intake, 600 cfm carb and new HEI distributor. Today is the first day I've really had a chance to drive it since the new stuff went on. Problem is that it's pinging. Seems to be worse once it's warmed up and sounds awful going up a grade. I threw some higher octane (91) gas in, but it didn't seem to help any. It was timed when everything went in, but my timing mark isn't where it should be. Could the pinging just be from the timing being a little bit off? Or, could this be caused by the carb? Someone told me that it might be running a little lean...??? Any help would be appreciated. I'm trying to get my junk dialed in for Pismo next weekend and this weekend is it. Thank you!