thanks Sp3no, will have a look at those places tomorrow, well later on today lol.
like i say, i dont want loads of power, just a few more. i have a spare st170 engine and head, although the block and crank may be totally shagged as the bottom end went last month, i didnt have the time or money to rebuild it, so i fitted a newer engine (46k) out of a 54 reg st170 into my 52 reg st170. so if the engine is shagged its getting turned into a table lol.
i can get another st170 engine for £500 from my local ford breakers if needs be, but was hoping to get all the parts i needed and do it all at once. the most expensive thing is going to be the ECU and remap.