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Old 01-08-2014, 05:14 PM
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Edelbrock 1406 problems

Ok guys new to the forum...looking for some much needed more experienced advice...
Ok i have a stock 350 sbc with 282 duration 455 lift edelbrock torker 2 intake long tube headers and 1406 edelbrock carb still using stock distributor..it idles fine but as soon as you wide open throttle it it bogs down I've adjusted the carb cleaned the carb twisted the distributor changed the plugs...im stumped and would really appreciate and advice twards the matter thanks in advance

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Old 01-08-2014, 05:24 PM
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Your 1406 is too weak for your build. I'd call Edelbrock (done it more than once, myself) and talk to their tech/support guys. Tell them exactly what your build is and they will come up with the right answer. But, I certainly defer to the next guy that submits an answer. There are a lot of really sharp guys on here.

Good luck!
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Old 01-08-2014, 05:36 PM
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Your 1406 is likely just right.
Timing first, carb second!
What's your timing at?
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Old 01-08-2014, 05:52 PM
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Well after I put the cam in I set it back to Tdc but I put a stupid chrome timing cover on it doesent have the timing tab so im not sure....I tried timing it by ear to the best if my ability
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Old 01-08-2014, 06:10 PM
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Find true tdc #1 and put a bolt on timing tab on it.
Start at 16* initial.
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Old 01-08-2014, 06:14 PM
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Tru tdc would be both valves all the way up on #1
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Old 01-08-2014, 06:38 PM
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True tdc would be found by inserting a piston stop in #1.
Here's a wiki on it.
http://www.crankshaftcoalition.com/w...op_dead_center
You can buy cheap adjustable pointers too.
http://www.summitracing.com/int/part...4237/overview/
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Old 01-08-2014, 06:56 PM
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Thanks a lot!!!
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Old 01-09-2014, 07:18 AM
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Did you change the hole that the rod from the pump on the carb goes to? Try that.
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Old 01-09-2014, 08:06 AM
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Quote:
Originally Posted by 78landau View Post
Tru tdc would be both valves all the way up on #1
No, both exhaust & intake will be open equally. It is called 'zero-crossover' and occures at the beinning of the intake cycle and the exhaust valve is closing as the intake opens. When they are exactly equal you should be at TDC.

Can't really sort out the carb until the timing is about right, they are mutually dependant.
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Old 01-09-2014, 09:08 AM
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another thing to check are your lines on the fuel pump.if had them get old and weak and when i got on ot they would collapes and starve the carb of fuel.might not be happening but checkings free
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Old 01-09-2014, 10:22 AM
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Quote:
Originally Posted by ojh View Post
No, both exhaust & intake will be open equally. It is called 'zero-crossover' and occures at the beinning of the intake cycle and the exhaust valve is closing as the intake opens. When they are exactly equal you should be at TDC.

Can't really sort out the carb until the timing is about right, they are mutually dependant.
WTF?

On the beginning of your power stroke at TDC both valves are CLOSED. On the beginning of your exhaust stroke at TDC both valves are OPEN BUT they are not open an equal amount.

"zero crossover" is just some BS term you dreamed up.



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Old 01-09-2014, 10:36 AM
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OJ , how do you find BDC?

If both valves are closed, how does the ground get in to make the spark.

Wiki edits?

Last edited by spinn; 01-09-2014 at 10:48 AM.
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Old 01-09-2014, 11:43 AM
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OJ

If both valves are closed, how does the ground get in to make the spark.
what?



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Old 01-09-2014, 02:14 PM
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Quote:
Originally Posted by ojh View Post
No, both exhaust & intake will be open equally. It is called 'zero-crossover' and occures at the beinning of the intake cycle and the exhaust valve is closing as the intake opens. When they are exactly equal you should be at TDC.

Can't really sort out the carb until the timing is about right, they are mutually dependant.
Really? I'd look for a bad fritoscrat...
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