2004 Yukon Denali.
Stock LQ4 bottom end. 6.0L engine
Precision Heads, 5.3L heads, stage 2.5
Texas Speed 224R cam, this is a 224/224 cam with .581 lift, 114 lsa
Kooks catted 1 3/4 headers with catted connection pipe.
Currently running factory muffler (wife says if it gets louder she will punch me in the face)
FAST LSXtr 102mm intake
stock intake tract and throttle body
LS2 corvette injectors.
At this point it rarely stalls but it chugs. Sometimes the RPMS fall down really low and after 2-3 seconds it will pick back up. This usually happens when slowing down. Sometimes the idle swings around.
I am planning on running through the CALC.VET thread today to see if that changes the fueling any and then try the RAFIG RAFPN again.
Yukon_0020.ctz
Originally Posted by 2002_z28_six_speed
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