Author Topic: 82 chevy 305 shutting off  (Read 2586 times)

Offline tj wand

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82 chevy 305 shutting off
« on: August 14, 2013, 12:21:31 pm »
i just rebuilt my 305 in the 82 Scottsdale. put an eldebrock manual choke carburetor. a big cam for a 350 has a 350 crank with 305 pistons. eldebrock air intake and manifold. now the truck has to sit a little to warm up before putting into gear if not it starts to choke a little and tries to cut out whats the fix on this?

Offline rich weyand

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Re: 82 chevy 305 shutting off
« Reply #1 on: August 14, 2013, 02:06:27 pm »
Sounds like you are running lean cold.  Does it do this even with the choke engaged?
Rich

"Working Girl": 1978 K-10 RCSB 350/TH350/NP203 +2/+3 Tuff Country lift

Offline tj wand

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Re: 82 chevy 305 shutting off
« Reply #2 on: August 14, 2013, 03:21:32 pm »
i dont have a manual choke cable installed

Online bd

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Re: 82 chevy 305 shutting off
« Reply #3 on: August 14, 2013, 06:49:10 pm »
i just ... put an eldebrock manual choke carburetor....
i dont have a manual choke cable installed

BINGO!  You just answered your question.  Hook up a choke cable.
Rich
It's difficult to know just how much you don't know until you know it.
In other words... if people learn by making mistakes, by now I should know just about everything!!!
87 R10 Silverado Fleetside 355 MPFI 700R4 3.42 Locker (aka Rusty, aka Mater)

Offline rich weyand

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Re: 82 chevy 305 shutting off
« Reply #4 on: August 14, 2013, 07:33:35 pm »
Yup.  You are going way lean (>16:1 Air/Fuel Ratio), to a non-combustible mixture, and the fire goes out.  The choke blocks the extra air until everything heats up enough for the carburetion to richen up.  I have an A/FR meter on mine, and you can watch the mixture richen up as the engine heats up.
Rich

"Working Girl": 1978 K-10 RCSB 350/TH350/NP203 +2/+3 Tuff Country lift