Cheers for the replies guys.... I just wish i'd been warned of this more when i was deciding what to do tbh. I have gone through too much b*ll*x now to even contemplate the 'what if' syndrome, so i aint going there at all! The reason the ZVH came about was because the 1.6 was knackered and although offered a full rebuild, i thought it better and easier for the guy to swap engines and give me something that i have always wanted....

Looking at these answers/replies tho.... If i get my metering unit sorted (it too is knackered) and then get her on the rollers and have all fuel and air adjusted to suit the 1.8, maybe I will be happy with the pull. The car itself is probably just as quick, it just doesnt 'feel' that way.... and to me, being thrown back in the Recaro is what its all about!