Your not gonna get much out of a hcs mate. TBH i wouldnt of bothered with the rebuild, probably would have been better to invest in a 1.6 or something. if you get twin carbs you probably wont see much difference, nice sound, can say bye bye to fuel economy but then again there one of those mods you can move onto your next car so its simply a matter of "do you want to spend all this money on something that will pump out 100bhp if it was tuned to the max or would you rather save your cash, wait a while an get something a bit special in a year or two. or as i said before drop a 1.6 in