[ChEsTeR]

Today i have set AFR on my silvia 12.5-11:1 @ 1 bar of boost. But one thing is bothering me. the car puls better then on 0.7 but after few runs the exhaust mainfold starts to glow. This has never happend in my old car(atuly happend at 0.8 bat of boost on a T2 with no IC). Can the EGR system (mallfunction or not) cos it????? It happend the moment i have replaced injectors and pluged EGR back because i fond out that a vacume line from the intake manifold was of. The plugs are all wite ( the AFR at lower RMP's with no bost is 14.7:1)
And one thing more before tuning it but right after instaling bigger injectors exhaust mainfold olso glowed red even at at low boost and the AFR was much richer.