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Sluggish acceleration with my new 4 barrell

Posted By Barnabasmc 8 Years Ago
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Ted
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Barnabasmc (8/21/2017)
The car is running pretty darn good now but still a little sluggish at the low end. Once up to speed it runs really good. The timings correct, brand new plugs, wires are good, compression is great in all cylinders,points are set right. Someone suggested that I might need to change the metering rods in the carburetor. Any thoughts?

I’ll suggest adding some more initial advance timing to the engine before tackling the carburetor.  12°-14° initial at idle with the vacuum advance unplugged would be a good starting point.


Lorena, Texas (South of Waco)


Barnabasmc
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The car is running pretty darn good now but still a little sluggish at the low end. Once up to speed it runs really good. The timings correct, brand new plugs, wires are good, compression is great in all cylinders,points are set right. Someone suggested that I might need to change the metering rods in the carburetor. Any thoughts?
Barnabasmc
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A local mechanic I bought the points and condenser from suggested the same thing so I think I will try it tomorrow. I had it out today and it is running better than it ever has since I got it. Thanks for all the help.
oldcarmark
Posted 8 Years Ago
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quote]Barnabasmc (7/12/2017)
UPDATE.... After frying the points and condenser because my mechanic friend hooked the black wire to the wrong side of coil (after I said I think it's backwards) we bought new points and condenser and installed them. We put on a new coil with a built in resistor and set the timing to 6 degrees b t d c. We took a test drive and it runs great! We still have a little fine tuning but the problem has been fixed. The distributor we took out was from a 57 (it had writing on the bottom and a price so someone had put it in to replace the original) but converted to electronic ignition and it looks like the vacuum advance was not working right. Thanks everyone for the advice it was extremely helpful.
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You can bump the Timing to about 8 BTDC. The stock timing recomendations are conservative. The vacuum Advance is adjustable using a 3/32 Allen Key through the opening in the end of the vacuum Can. Clockwise increases the amount of Advance and CC decreases it. You should be setting it for about 8 degrees of available Advance. Overall available Advance including Initial,.Vacuum, and Centrifugal should be 42 Degrees Maximum. You can swap the Advance Springs for lighter Ones so that the Advance is all in by 2500 or so RPM. Get it running properly 1st and then U can fine Tune it then by changing the Springs.

http://forums.y-blocksforever.com/Uploads/Images/a82cee8f-be33-4d66-b65d-fcd8.jpg  http://forums.y-blocksforever.com/uploads/images/339ed844-0bc3-4c73-8368-5dd3.jpg
oldcarmark
Posted 8 Years Ago
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Glad to hear its working for You. If the Electronic Ignition Conversion was working You can install that in your new Distributor . As long as its a later style Distributor like the One U purchased.  Don't discard it. 

http://forums.y-blocksforever.com/Uploads/Images/a82cee8f-be33-4d66-b65d-fcd8.jpg  http://forums.y-blocksforever.com/uploads/images/339ed844-0bc3-4c73-8368-5dd3.jpg
Barnabasmc
Posted 8 Years Ago
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UPDATE.... After frying the points and condenser because my mechanic friend hooked the black wire to the wrong side of coil (after I said I think it's backwards) we bought new points and condenser and installed them. We put on a new coil with a built in resistor and set the timing to 6 degrees b t d c. We took a test drive and it runs great! We still have a little fine tuning but the problem has been fixed. The distributor we took out was from a 57 (it had writing on the bottom and a price so someone had put it in to replace the original) but converted to electronic ignition and it looks like the vacuum advance was not working right. Thanks everyone for the advice it was extremely helpful.
paul2748
Posted 8 Years Ago
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Are you running  resisitor?


54 Victoria 312;  48 Ford Conv 302, 56 Bird 312
Forever Ford
Midland Park, NJ

Gene Purser
Posted 8 Years Ago
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Your points ARE the ground to the coil circuit and should be connected the "-" side of the coil. The winding in the coil reduces the voltage to the points so they can close and allow the coil to "saturate". The instructions that came with the distributor should give you the information to connect it correctly. 
oldcarmark
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Yes that setup is for 12 Volt - Ground. If it was 6 Volt + Ground it would be the reverse. Distributor to + side of Coil.

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Barnabasmc
Posted 8 Years Ago
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Would this still be true since this car was rewired to 12 volt and now has negative ground?


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