He Isn't a mate as such, but until recently had an Alfa/Ferrari/Lancia workshop/service garage. A friend who runs a 33 used to take it to him for work on a regular basis so he used to give us both expert guidance when asked!
As for the car it is a series 2 (the meanest looking one) and is an 1800 8v boxer Bored out of course. It has had Leda coilover suspension fitted, balanced, ported lightened, hardened pistons, different valves and heads, 16v modid manifold with supersprint exhaust ITG race filters, crank everything really and full electronic ignition/electrical system.(which for anyone interested and maybe has a 33 as well as the 155, he reckons is the best pound for pound modification you can make to these cars with a gain if i remember correctly of about 25hp if set up properly)!
I think it puts out about 250hp without the nitrous, oh sorry alex didn't mention that!
About 420 last time I was aware with the gas this is at the flywheel of course.
I think the standing 1/4 is about 12.0 seconds may be a tad less not bad through the front wheels
Don't ask me for any more detail beacause other than the stuff listed I havn't a CLUE what it all means really.
I expect I'm going on so apologies all
Oh and it wears a 1.5 badge on the boot