cutting out in first

[Foxed]

Full throttle my cars starts missing and poping in first gear around 4k rps. My car is stock with cai o/r x spin techs and timing at 20* with spout out... Does any one know why my car is doing this??? Please help

 

[95YellowGTbeasT]

if the spout is out i think that the timing jumps up and down, if im not mistaken. Thats prolly what your problem is. someone correct me if i am wrong.;

Nick

 

[Foxed]

The car pings too bad with the spout in