[Healeys] carb lifting pin

[Greg Lemon]

Everybody has different feel and experiences, that being said I have driven 
SU carb cars for 30+ years now and always worked on them myself.

I find the pin trick pretty much useless, I can move the carb adjustment a 
number of flats or even turns either way and get the same result from the 
test, maybe my hands and ears just aren't sensitive enough, I also struggle 
with getting 1/32" of an inch on static item, let alone a vibrating motor.

A proper mixture should pretty much run fine (from cold) on a hot day from 
start or with no or very little warm up and might or might not need choke to 
start, take a some choke to start and for a very little while on a cool day, 
under a minute or so,   and take more choke for a longer period of time on a 
cold (like below freezing) day, and once warmed up in the varying fuzzy 
amount of times noted take throttle under load without missing or 
hesitation.

Tune as above, read the plugs from the color picture charts in the books and 
on the internet. if they look like they should you should be good to go.

My opinion and experience, your mileage may vary, but has always worked for 
me.

Greg Lemon