Recent content by AlexC20
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Brand new quadrajet untunable!
Martimus thank you for the write up! thats going to be the process i will do this weekend. i know the engine is suppose to be nice and cold and here in Oregon right now thats exactly how it is. ill keep your reply open while wrenching on the truck this weekend. i knew about bending rods and what...- AlexC20
- Post #15
- Forum: Carb Fuel Systems
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Brand new quadrajet untunable!
So I'll try to switch to manifold vacuum and retime the engine. When I bought the truck I wanted to keep everything totally original and maybe I'm asking to much! And a really really dumb question, if x-amount of ports on the carb is manifold vacuum then it will always see manifold vacuum, does...- AlexC20
- Post #9
- Forum: Carb Fuel Systems
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Brand new quadrajet untunable!
Vacuum advance is hooked up to ported vacuum and my initial timing is set to 8 degrees BTDC. and thank you Daveo91burb! I'll check him out when I have the chance too and maybe give him a quick call!- AlexC20
- Post #7
- Forum: Carb Fuel Systems
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Brand new quadrajet untunable!
The only way to check if theres a hot cam in there is take off the timing set, right? All my extra vacuum ports are plugged I only need the vacuum advance and the vacuum choke to the air cleaner. And for anyone who knows, does this year of truck have a gas tank vent? If that were plugged wouldnt...- AlexC20
- Post #4
- Forum: Carb Fuel Systems
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Brand new quadrajet untunable!
Hey everyone, I have a 78 long bed with a non modified 350, found out the q-jet that came on it had leaking throttle shafts so I went and got a refurbished one from TomCo. Put it on, had bad problems with it like the needle was missing the hanger and the float level was at 1/8 inch, I fixed...- AlexC20
- Thread
- Replies: 16
- Forum: Carb Fuel Systems
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78 c20 quadrajet problems
I just got done not but 2 weeks ago replacing the known vacuum leak from the manifold gaskets. I did plugs,wires,cap,rotor and coil the day I bought it. After looking at it again yesterday we did a compression test and all cylinders have good compression. I've plugged every port and eliminated...- AlexC20
- Post #11
- Forum: Carb Fuel Systems
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78 c20 quadrajet problems
Yes everything matched all the way down to the metering rods and jets. I was given another 17058213 from my grandfather who had the exact same truck that I do and when I tore it apart to rebuild it, all the internal parts matched the one that originally came on the truck. I have sprayed the carb...- AlexC20
- Post #10
- Forum: Carb Fuel Systems
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78 c20 quadrajet problems
Alright thank you everyone! I will go ahead and see about the manifold again and probably just replace the gaskets, if that doesn't work I'll go from there- AlexC20
- Post #8
- Forum: Carb Fuel Systems
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78 c20 quadrajet problems
My initial timing is set to 8 degrees BTDC. My dad has worked for chevy for 35 years and is still stumped. I'm not looking to put any performance into it I'm just trying to enjoy the truck, mines got a cast iron manifold on it. Even though theres no leaks on the outside of the manifold, it could...- AlexC20
- Post #6
- Forum: Carb Fuel Systems
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78 c20 quadrajet problems
It's not the breather tube, it's the vent tube off of the carb- AlexC20
- Post #5
- Forum: Carb Fuel Systems
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78 c20 quadrajet problems
Hey everyone, new to the forum. Ive had my 78 c20 for about a month now. It has a year correct chevy 350, 346250 Intake manifold, and 17058213 Q-jet. Long story short- Truck wasnt running well after doing some work to it. Rebuilt the carb, didn't work. Put another carb that I rebuilt on and it...- AlexC20
- Thread
- Replies: 13
- Forum: Carb Fuel Systems
