hi scotty01
i think the cost is really up to you.if you want a cheap and quick way to turbo it buy a cheap late model turbo t25 or t28 eg and blow through a 32/36 weber and use a malpassi reg and boost retard on the dissy timing. thats basically what im looking at trying except im probably going to put new duralites with lower comp ratio and a decent portjob/cam etc and maybe try holley 350 carb.this setup worked well on 2 litre escort and was quick and reliable and drove fine for months.