Street Gear Poll

The 1110s work for me, at .549 lift, on my Eddies, to well past 7500rpm

I'm not sure you understood my previous post.
-The stock ground 268/276 cam will not help your "pinging" situation, at all. To reduce/eliminate the ping there are a number of things that you can try(previously listed). To do it with the cam will require a later closing intake angle.
-IF your current compression ratio is EXACTLY 10.5, and if the current ICA (Intake Closing Angle) is exactly 60*, then an ICA of 66*, will reduce your Dcr from the current 8.64(which we know Pings under special circumstances), to 8.27, which may or may not cure that.We, or rather, I believe it will, with careful control of,timing and charge temperature.
-So any cam at all, that has an ICA of 66*ABDC will do it. I picked the 268, cuz you wanted to move the power peak up some 500/600 or so rpm.I suggested a cam LDA of 114, cuz that will put the installed CL at the correct 66* when installed 2* advanced. This gives you a little wiggle room to move the cam around to kill some Dcr if needed. And if it doesn't ping then maybe you can advance it some.See, if you are walking the tight line that you are with a 10.5 Scr, you have to be willing to put the time into it to help it survive.The pay-off comes when you get it dialed in, it will be a very hot SBM streeter; having gobs of low speed torque and a very strong powerband, and a decent top end charge.
-Now to finish up the cam talk; You are(as said) free to pick any cam you like that has the aformentioned 66* ICA. Then chose the Intake duration that will get you into the operating range you want(and that the heads will support). Then stick the max lift on there that will fit, that can be supported by the heads, and that the cam grinder is willing to supply. The exhaust duration can be the same as the intake, or if the heads need a little help, then add 6 to 10 degrees.
-Now, this is all small talk,cuz it all hinges on the IFs that I opened with.You will have to prove those numbers. Then call your favorite cam company and have a custom cam ground.Or if you cannot prove the 10.5 and 60*, do what I would do; retard the current cam until it stops pinging(after trying the easier things like slowing the rate of advance, and moving the all-in advance up a few hundred rpm, or otherwise messing with the timing). Then prove that ICA, and order up a cam.
-Just FWIW, I and others have successfully street-run Scrs over 11.2, with Dcrs of 9.2 or better, with aluminum heads. And,I have read of guys running 8.5 Dcr or better with C.I. , so you are pretty close. A little fine tuning of the timingS, may be all you need.
Best of luck to you.