Middleburgeric
New member
Hopefully y’all can help I’m going crazy. I have a 61 econoline with a bone stock 200, has Holley sniper fi. I put in a generic hei distributor. I can’t get this thing to stop pinging at cruising speed (3000 rpm). I think it’s ping it kinda sounds like marbles in the valve cover. If I floor it it goes away and same if I let off the gas. I have 10 degrees of initial timing at 700 with 18 degrees of total timing advance so should put me at 28 . The vacuum is adjustable and I have tried it everywhere still pings. My advance springs should have my mechanical timing all in at 3500-4000. Any help would be awesome thank you.