Well you may remember my questions regarding the pinging on my engine with
the new HO cams. The local friendly dealer had the truck all day and said
the following:
A) It runs like a bat out of hell!
B) It's fast
C) The noise you're hearing is pinging.
I currently have Autolite 5224's and the stock 195 thermostat. So my
question is the following:
1) Should I replace the thermostat with a 180? Is the Robert-Shaw 330-180 a
good one to use (I have it in the truck right now sitting on the passenger
seat)
2) Should I replace the plugs while I'm at it with Autolite 5223s or 3923s?
I currently have the Autolite 5224s
3) No one else said the cams caused the ping on their engines. I'm running a
few mods, most notably 4" Z-Tube, 3" in, 2x2 1/4" exhaust, Mike Leach custom
PCM flash, and now the HO cams. Could the advanced timing on the PCM be
causing the ping? I had about 1/4 - 3/4 of a tank of 89 in my truck, which I
then topped off with 91 octane and a can of 104 octane boost and it still
"pings". Am I right to say that if the cams where off a tooth on the
install, or one was off a tooth and one was right on, it wouldn't idle right
or run smoothly?
Thanks again guys!
william
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