to be honest it wouldnt have any lag realy.... but whats the spec of engine and is it efi or mfi....

the turbo will do 230bhp on the right engine... (see karlos g) thats what hes running on the same turbo but on a 1600 with megasquirt...

if its still on mfi it will be running out of fuel before boost lol as they will only safely flow to around 210bhp... then you would need at least a 5th injector.