Car is a 1980 Clubman Estate with a 998 A+, HS4 carb and stage one kit, currently fitted with an AEM needle (ideally I need a leaner needle at idle but richer throughout the range as the engine, whilst not stuttering like a fuel issue, struggles slightly to gain speed, pulling the choke doesn't help either.) Air filter is a KnN element type, fitted in a late carb car air filter box.
Current set up has the CCV port and timing cover breather to atmosphere.
My question is in relation to the CCV port. Will there be a difference in emissions if I reconnect the breather to the ccv port will the emissions of the engine drop or increase? The engine was rebuilt 200 miles ago, doesn't smoke at all BUT stinks of fuel (plugs are a grey soot colour, which tells me they're slightly rich). Car runs really well just slightly flat then pulls well.
The issue I have is if I do change to the recommendation of an AAU (as supplied in the stage one kit) then I will need to raise the jet towards the bridge of the carb but I can only get 2 full turns until the bridge and jet is level.
Apologies for the long post, trying to get as much information in one go!
What do you all recommend I do?
Thanks in advance
Edited by cal844, 19 June 2020 - 07:40 PM.