Can anyone give me any info, im hoping to swap my erst for a grey 88 2wd saph.

Also what will be quicker ?
My erst spec:
Stage 2 1600 cvh engine with ported + polished head
Stage 3 Hybrid T3/T4 turbo
-31 Actuator
Ahmed bayjoo fully mapable chipped ecu (currently peeking at 1.5bar and flatting out at 1)
Full Mongoose stainless steel exhaust system with 3" outwardly rolled tailpipe
Polished bailey dump valve
Under bonnet bleed valve

Cossie spec:
Stage1 Chip giving 285 BHP.
Group A Head Gasket.
Group A Dump Valve

What sort of 0-60 and 1/4 mile times would the cossie do ?

Cheers
Sam