Pontiac Owners Club UK

The MOT tester said my cars engine had the best emissions he had ever seen from a non catalyst car of its age and engine size. It got me thinking are they all as clean running ?

CO: limit 4.500% - my car reading: 0.401%
HC: limit 1200ppm - my car reading 100ppm

I never imagine it would be so clean running!

they should be as american emision regulations were tighter than ours were 20 years later, but some are not (especialy if modified)

No emissions junk on mine so I'm surprised! It's just the carb, combustion chamber and exhaust pipe! Lol

sounds a bit lean for a de-smogged one

Hmmm well apart from the bogging down its running well. Ill check the plugs and see what colour they are in the week.

I might nip down to Autopontiac at some point and get Robin to fine tune the carb.