Engine Compression in a GPX

[Eltnot]

I've just had a car that I'm looking at buying into N.G Jap Spares for an inspection. Here's the info that they've given me so far (should be getting dyno information tomorrow as they forgot to send it):

6A12 mivec engine 175-180 psi engine comp.
all engine accessory are functioning correctly.
no error codes loged in ecu.
clutch 70%
tyres 75%
no oil water vacume leaks.
suspensions in perfect working condition.
gearbox in perfect working order.
brakes and abs functioning correctly.
over all it is a tidy car.

What should the psi engine compression be in a GPX?
I've tried looking around online, and even flicking through the technical manuals, but I can't find that information anywhere.
My understanding is that if the psi is too low, you have a leak in the engine, reducing performance and wasting fuel, but if the psi is too high, it can mean the engine is firing to early, leading to extra wear and tear. Is this correct?

As an aside, they've said the ABS is functioning correctly, but I was under the impression that ABS was only fitted to 97 models and onwards, and this is a 96. Is it likely that someone might have fitted one in Japan, or is it more likely that the mechanics been lazy in their inspection?

I'll post a pic of the engine bay later on tonight when I get home if that would be of assistance.

[RallyMad]

From memory ABS was an option until facelift when it became standard.

not sure about the psi engine compression though sorry mate. Never heard of that before. If there aren't any leaks though wouldn't this suggest there is no problem. If the workshop has supplied you with this information and hasn't highlighted it as a problem with you I would think it should be fine.