Vacuum leak?
#1
Vacuum leak?
I have had a heck of a time trying to track down a possible vacuum leak .
I have a 451 with Pro systems Carb and nitrous plate,all gaskets have been changed from the intake up to through the carb. The problem i am have is when i take for a drive once i come to a stop it will start to lean to 18-19 AF
It has all new fuel system and filters. I do hear a slight whistle but only when i drive it! I cant get it to do in park or even in gear slightly giving gas.
I have a 451 with Pro systems Carb and nitrous plate,all gaskets have been changed from the intake up to through the carb. The problem i am have is when i take for a drive once i come to a stop it will start to lean to 18-19 AF
It has all new fuel system and filters. I do hear a slight whistle but only when i drive it! I cant get it to do in park or even in gear slightly giving gas.
#3
Permatex Ultra Copper Maximum Temperature RTV Silicone
I have a innovation air fuel gauge,At idle it sits at 12-13 airfuel
I do not hear a leaking sound at idle or even in gear. Im wondering if the whistle is coming from my carb needing more
I have a innovation air fuel gauge,At idle it sits at 12-13 airfuel
I do not hear a leaking sound at idle or even in gear. Im wondering if the whistle is coming from my carb needing more
#4
Super Moderator
Do you have a different carb to try?
#5
Super Moderator
If its a Holley knock off and has a power valve it might not be opening.
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Joey Guzman (05-12-2017)
#11
Mopar Lover
That's kind of to be expected... A little is ok...But not lot a boat load?
Can you pull the carb and install a block off plate and retest it?
Car has Power Brake? Booster could be leaking? or maybe the vacuum actuators inside the car?
Can you pull the carb and install a block off plate and retest it?
Car has Power Brake? Booster could be leaking? or maybe the vacuum actuators inside the car?
Last edited by RacerHog; 05-16-2017 at 02:33 PM.
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josehf34
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12-16-2014 06:05 AM