290 in a small car is going to feel quick, look at my old red one it had same turbo kit as yours and mine made 287bhp its in my readers ride, and mine had more done to it aparts from overbore
 
honed block aint overbore, just cleaned bores!

mine was 1800cc fully forged and amde 287bhp

yours will not make anymore as the mainifold and turbo cant flow it, read up on the eliminator 1 kit mate