[screamingdsm]

if your running a 35r,im hoping theres somekind of stand alone involved,and big injectors,in that case you should be able to work out a .63 a/r turbine housing and get full boost at 4200 or so,and thats a estimate,might be lower.Lag is a figure of speach.I mean if you try to lay into it in 4th gear at 2k its gonna lag,but thats why you have the option to down shift.It comes down to how much usuable rpm you have.I mean if boost comes on at 4200...where can you take the car out too,8 8500.Thats gives you around 4000 rpms of usuable power