keng2 wrote:
> "Whole Lotta Tom" <Whathu@[EMAIL PROTECTED]
> wrote in message
> news:kA6wi.698$924.10@[EMAIL PROTECTED]
>> keng2 wrote:
>>> "Whole Lotta Tom" <Whathu@[EMAIL PROTECTED]
> wrote in message
>>> news:narvi.13618$eY.924@[EMAIL PROTECTED]
>>>>
>>>> "keng2" <keng2@[EMAIL PROTECTED]
> wrote in message
>>>> news:46bde3c2$0$29722$4c368faf@[EMAIL PROTECTED]
>>>>> I recently replaced the dist. in my Mstng 390 which needed it so
>>>>> badly that it wouldn't run with the vacuum advance connected.The
>>>>> cent adv springs were almost falling off and a $33 exchange dist
>>>>> at the local Auto Zone was well
>>>>> worth it.Now I seem to have a new problem.I set the idle timing
>>>>> for 10deg BTC and the engine performs well but starts with extreme
>>>>> difficulty.I tried a setting of 5 deg BTC and it starts great but
>>>>> of course doesn't perform as well. Is there a happy medium or
>>>>> should I be looking for vacuum leaks or? KenG
>>>>>
>>>>
>>>> When you set the timing, do you have vacuum advance operating? Are
>>>> you using vacuum advance at all? If so, where are you sourcing the
>>>> vacuum?
>>>>
>>>>> There is a vacuun advance take off from the Holley to the dist
>>>>> that uses venturi flow so there is essentially no vacuun
>>>>> advance(or line vacuum) at idle even if the tube is connected.
>>>>> The advance vacuum doesn't take effect until greater than 2000
>>>>> RPM.So I,ve decided to keep the 10 deg BTC setting and utilize
>>>>> the better performance while checking for other vacuun leaks at
>>>>> the carb base,intake manifold and vacuun operated power
>>>>> accessories.(pwr brakes,xmission modulator,unknown smog equip)and
>>>>> what do you suggest??
>>> Thanks.
>>> KenG
>>
>> When you have difficulties starting, does it kick back, or does it
>> take a lot of cranking before it fires? Or is it something else?
>>
> It does just about "all of the above" and also runs rough and shakes
> for a short time. It doesn't take alot of cranking and very little
> kick back.though. It generally smells rich but idles beautifully once
> it gets going.It does have a MANUAL choke though and I'm thinking
> that I just never got the hang of starting with the manual choke???
> Any comments
The manifold might be leaking at the bottoms of the runners, not an
unusual
sitch. You might also want to back increase the fast idle a bit so you
have
more fast idle and less choke when it's cold.
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