so...I've been driving around lately and I know I need to check the torque on the header bolts but how much torque???...also...Im hoping it maybe just a small leak but at certain RPM's I get almost a "pinging" sound I run good gas in it 92 octane from BP....best around here anyways......so hopefully it's just a small header leak and tightening it up will fix...or is it just wishfull thinking.... I just hope it's not anything inside the engine.

 

torque should be 18 ft/lbs. i had that sound too after going to headers.

 

can't finish my post...dammmit!!!!

 

i wander wat that sound is....? lil wierd...and it only does it once it's heated up....

 

mine does it all the time.....damn still can't post more than a sentence...wtf

 

its very light more like a constant ring. thought it was bad afr causing detonation.

 

went on the dyno and it said i needed more fuel. put in sct to richen it up. still had the sound.

 

i'm guessing the sound is normal and the oem headers were just hiding it cuase they have so much mass.

 

I have never gotten any audable pinging sound but it's possible the CAI, header & exhaust note I have hides it if it's not that loud.
As far as Torquing to a specific #, the way I was taught was to tighten it just snug with a hand wrench, drive it till it's good & hot & snug 'em again. This is supposed to be the only "approved" method for aluminum heads...