I have a 4.8L with a K&N FIPK and a GRANATELLI MASS AIR FLOW SENSOR. Under heavy acceleration it is pinging. I think it is because of the Granatelli, what do you guys think. I am going to put the stocker back in and see if it helps. I have heard the Granatelli could make the truck run lean. It is calibrated for a stock intake so that could make it even worse.

 

Thats probably it. As far as I know, all the guys on here that are making big power are doing it through the stock maf.

 

If you want you can always run higher octane gas. I have a Granatelli MAF and mine runs just fine. I also have HPIII also. I am running Nitrous so I have it set to 87 octane on the programmer but I also run 93 octane in my truck at all times cause I never know when Im going to spray.

 

use the MAF as a wheel chock!

 

Try changing your fuel filter first,I did that and it cured the problem.

 

Me too. I have seen motors ping to DEATH on these things.

 

Yeah it looks like the MAF is going back to stock, I will be doing it tonight. I would say it could be the fuel filter but the truck only has 10,800 miles on it. I will tell you guys what I find out.