20v coupe turbo

hi im new to this forum allways had audis but wanted a change so brought myself a fiat coupe 20v turbo im very impressed with it and want to learn more about it its pretty stanbard other then i think it has fiter but thtas it but geos really wewll just feels it hoads back sometimes and has a slight miss is this injectors or somthing .

also can iu fit a dump valve on it or is like the 20v trubo audi you can only fit a recircle one on it which is what i think it allready has as its very quiet sometimes cant here it
and help would be fab

I fitted baileys dump valve on my coupe which was quite a bit loader than the standard one.

When you say it holds back what do you mean. There is a a second or so before the turbo kicks in and it flys if you try and floor it a bit.

Atmos can be fitted but may give very slight idle problems.

Forge is the one to get.

Ross