Blacksmith13
Newbie
Hello,
I have problems with the idle in my 1979 Blazer.
The engine is a rebuild (1000 miles since) 350cui 030" over engine. Equipped with a Edelbrock performer cam, Headers with dual exhaust, ported heads, stock gm aluminum 4brl. intake manifold and an edelbrock 1405 performer carb with manual choke.
The engine runs strong and healthy till yesterday afternoon. There was no problem when i used the truck in the morning. At afternoon i needed it again. The engine starts easy but the idle is bad now. It will almost die at idle and sometimes the engine speed rises a bit without touching the throttle.
If I press the throttle sligtly to rise the rpm (for example) to 1200rpm´s the engine takes one or two seconds before responding. The same while driving near idlespeed.
Hitting the throttle to wide open, the engine responses imediately without any recognizable problems and pulls fine.
But if it goes back to idle, same problem.
For a few month i replaced my leaking too small 5/16" fuelfilter with a new one. On the package stands made in china. I couldn´t get anything other than that around town with a 3/8" inlet and outlet. Mayby this little thing of crap is causing dirt in my crburetor?
Or do you have any other suggestions for my problem?
I have problems with the idle in my 1979 Blazer.
The engine is a rebuild (1000 miles since) 350cui 030" over engine. Equipped with a Edelbrock performer cam, Headers with dual exhaust, ported heads, stock gm aluminum 4brl. intake manifold and an edelbrock 1405 performer carb with manual choke.
The engine runs strong and healthy till yesterday afternoon. There was no problem when i used the truck in the morning. At afternoon i needed it again. The engine starts easy but the idle is bad now. It will almost die at idle and sometimes the engine speed rises a bit without touching the throttle.
If I press the throttle sligtly to rise the rpm (for example) to 1200rpm´s the engine takes one or two seconds before responding. The same while driving near idlespeed.
Hitting the throttle to wide open, the engine responses imediately without any recognizable problems and pulls fine.
But if it goes back to idle, same problem.
For a few month i replaced my leaking too small 5/16" fuelfilter with a new one. On the package stands made in china. I couldn´t get anything other than that around town with a 3/8" inlet and outlet. Mayby this little thing of crap is causing dirt in my crburetor?
Or do you have any other suggestions for my problem?
. Today i checked it also. Everything is fine now. 
