if your doing it too you 2wd engine then theres 2 options either change to a 4x4 200 block or speak to someone like
www.norrismotorsport.co.uk about wire ringing a 205 block.
you will need to have valve pockets machined in but try and keep standard compression as it will drive so much better.
then look at a gt3076 turbo i would recomend externaly gated / 83lbs siemens and at least a 4x4 inlet plenum with a spacer. but i would look to getting a hart inlet.
and get someone to port your head. along with the cams you have
and you would benifit from changeing the management to either aftermarket of at least p8 from a escort cosworth so can be live mapped to the car..... along with wasted spark coil pack set up
and a nice spec r cooler and breather system and it will piss 500bhp.
good luck mate
my car has 200 block, big pockets standard compression and a gt35 and runs 2.2bar and it flys and drives like a t34 car