Question about what detonation sounds like. At idle I hear a lot of pinging noise but when I put my ear up close to the noise it's he headers making that noise. I read that detonation will sound like a pinging noise or bacon frying in a pan. It sort of sounds like that. Is this detonation or is it just the manifolds/headers making the noise? It's been doing this since I've started the freshly built engine up and I have over 3,000 miles on it now. I'm thinking it's just the headers making the noise. Thanks!