high low octane tables

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Apr 16, 2005 | 08:36 PM

#21

02sierraz71_5.3

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From: Cornelius, NC

Quote:

Originally Posted by Randy Grabert

well to answer all ? I don't know afr @ this time and yes it is @ wot and yes it is all the way to 7400 rpms. I am on my 3rd motor but not the reason I had a hole in the air duck behind the mass air flow sensor and I was tring to run through cats which I move way in the back dy the mufflers they were slam clougged and tring to turn 7000 just the 2 blew them and both motors were in the truck for a while before taken out driving every day.

The cats might of been clogged from all the fuel you have to run to get the timing that high and not detonate the motor.
What rear end gears are you runnin,
at 7400 in second how fast are you going?
Im assuming the whole quarter mile is done in the first 2 is this through a 4l60e?
Why move the cats back to the mufflers and not just get rid of them?
Im really amazed at how much these 5.3's are taking your really pushing it too the limit, nothin but props