Re: I wanna go faster! Tuning a 33?
keep your eyes open on ebay etc for a non standard manifold, exhaust (the OMP that Demon Tweeks sells is not bad) some ram pipes and foam filters and if you're lucky some fast road cams. If your engine is sound then these parts and a good rolling road tune will see 15 bhp....doesnt sound much but it is a 10% increase. You might find that getting the carbs set up will make a big difference to responsivness. If you want more accleration through the gears then fit a lower ratio box from a 1500 sud etc, you will lose top end speed, but get to 100mph quicker and will make your car feel quicker without engine mods. I'm sure you could do the above and get away without telling the insurance man.
Finally, the 1700 33 you have was a quick car in its day, it was about 6 seconds faster to 100mph than the Escort XR3i, it is just that modern cars are all relatively quick now, my diesel beemer is quicker than my V6 156......what you can also do is get the handling sorted and blow the modern jelly moulds away around the bends.....have fun