[GumbyChuck]

Gotta chime in with a yep on a few things -

-small diameter longer pipes
-extension from carb to head (really hard to do on single carb setup,though)

A few other thoughts:
You didn't mention WHICH stock cams you were using. Some years are better than others.

What year is the head? Later ones have larger valves...

On the needle setting, and the pilot jet - pilot jet on a concentric affects idle and just off idle, needle clip position is mid range, main jet is WOT. These are more tuning for smoothness of operation and proper mixture than performance. How does she idle, does it stumble, what do your plugs look like?

 

[GumbyChuck]

Well.. I don't know what year head is (probably late 60's early 70's)... The cams I got.. I compared them to the 69's and 73's I have and they're all exactly the same..

you should have the largest of the stock valves then...I have a '63 single carb head on my 71 and put the later valves in...you can get larger, aftermarket valves....if you go to the length of having the head ported and flowed you might want to do this step.

think I'm gonna try another jet... try a bigger one, try a smaller one.. Just see what happens.
I'll leave the needle clip on midrange..
She idles great... Just perfect.
Plugs are pretty much coffee brown... there's a small difference between right and left.....

remember the jet has the most effect on WOT....the difference between right and left is likely difference in carburetion...how did you synch the carbs?

From what a collegue of mine told me... He said: Run WOT in top gear, then kill the motor... That's when you should check the color of the plugs.. I didn't do that though..
I checked 'em only after a long ride... then just got back to the house, shut the motor down and checked the plugs..

he is correct....shut down right after wide open throttle...engine off, coast/brake to a stop, then check.

let us know what kinda results you get

 

[GumbyChuck]

I know nothing of what you speak.What does WOT mean. I am not sure that I have ever had WOT. Is there oinment for this condition. LoL If I have had it I would be very afriad that it would spread.

C'mon man, you know, roll it on til you see the Lord....

Wide Open Throttle
or
Wide Fuggin' Open

 

[GumbyChuck]

I'm sure I am speaking sacrilegiously ..... But talking go fast .... you guys ever think of dropping the Amal(s) and going with a Mikuni(s) .... Most of the fastest, and best running Triumphs I have seen were running them .... Especially if the bike was more than a straight liner...

Ya they just don't look all that cool......

And yes, both my T's are still running the Amal .... But, the '67 may end up with one or two .........

True, didn't think to mention it.
Just really HATE the look of the Mikuni.
Saw a bunch on Brit bikes at the SMSO this weekend, don't like'em.
And, if he's picking nits, get a twin carb head, they do make (barely) more power on the top end.

 

[GumbyChuck]

Pipes aren't turning blue, so it's not too lean, but when the bike is idling and I give a little throttle burst, there's some fuel coming through the webbing of the velocity stack...

rich at part throttle - drop your needle a clip
might have reversion problem too - how long are your pipes?

Seems that an ARD mag "does" advance over the whole RPM range... Maybe I should go for one of those...
How much are they? I couldn't find a price on Britcycle.com

last I saw, around $500US