help me figure this out

[Anonymous]

I WENT AND PLAYED WITH THE TIMING YESTERDAY.

if I turn distributor counterclock wise, the idle smoothed out a little but dumped massive unburned gas when I jumped on it (brownish smoke when accelerating)

if I turned clockwise, the idle became rougher but less smoke ...more black smoke...

THEN I found an adjustment marked "lean" on the front of my holley (I had never seen that before) so I adjusted it....and now, i am not getting enough gas on hills. I tried moving it back but still didnt get it perfect...

could this be a secondary vacuum timing issue?

 

[Mustangaroo]

Set your timing at 10* to 12* then use a vacumn gage and tune your holley carb untill you have max vacumn, which should be between 15 to 20 inches depending on your cam and other mods you have made. Connect the vacumn gage to your vacumn tree or other manifold vacumn source. Tuning for max vacumn will improve performance, of cource make sure you are not running a lean condition with the size jets in your carb.

 

[Anonymous]

if anything, I am running too rich

how do I adjust the vacuum? is it the vacuum advance plunger thing? I need an allen wrench correct?

I have stock dizzy...so it should be the dual...

tonight is painting night....engine wise...and installing monte & export (if it comes)...mabe fan too....

THEN I will mess with timing...

IF I CAN GET TO THE OTHERS TONIGHT

 

[CobraSix]

Adjust the idle mix screw on the carb until you get max vacuum.

Slade

 

[Anonymous]

what about the secondary vacuum?

is that the mechanical one? how do you adjust that one?

 

[66Sprinter]

Is the idle mix screw the vacuum adj for most all carbs..like the 1100 too?

 

[falcon fanatic]

Yes, but it's not so much a matter of vacuum adjustment as it is a matter of best idle mixture. Best idle mixture runs best and so creates more vacuum by virtue of rpms and smoothness. I think :roll: