MG
The Classic Marque

IF the idle is 2.8%co then that is about 13.4:1 afr--it's ok but would be a better, more stable idle into the high/mid 12's

Looks like he's on around(average)5.5%-6% co on full load so that's on the money--roughly 12.5:1 afr but down the bottom of the list he's settled on 0.972%co (14.4 afr) for something--IF that's idle mixture it's way too lean, and if it's light throttle cruise it's borderline.
In all fairness it looks like he knows what he's up to testing and recording---He'll fix it, but yeah probably just a i...

Bill,
You are getting the not secure message because of who ever runs this, and probably the whole enthusiasts site, has not renewed the security certificate for the site. This I believe has to be done every year.
Bernie

Are you using an alloy rocker cover ? Look at the inside of the cover for clash marks from the valve retainers smacking the cover.

I’ve noticed that I’m getting alerts that this site is not secure. If it persists I’ll not be back until it’s corrected.
I was an active member here for about 20 years offering help and advice. I left primarily because there was a barrage of obnoxious mean spirited attacks by a member on this site towards one of the former regulars (Peter H from OZ). It got increasingly toxic by ...

Nick,

Great minds - etc

Do you have a copy of Vizard's A Series bible ?

Long story short IMO - good quality changed often OEM paper filters are the way to go !

I can scan and email the relevant page

Malc

Very nice.

Stunning !!

Love it.

Shame he is into wood, I'd prefer a leather one.

In combination with the K & N the sub stacks have to be low: I could not find them for the SU H1.

While you're at it, fit some stub stacks to the carb mouths. Just enough to round off the entry. I made my own from body filler, but you can buy them.