What size carburator?
Thread Starter
Mopar Lover
Joined: Jul 2008
Posts: 6,204
Likes: 4
From: Brooklyn, N.Y.
1500, WOW
I was thinking more along the lines of like a 900 CFM carburator
I was just thinking about it
the carb on it came with the car, and it is a 750, but that 50 less CFM's don't bother me
When I was driving the other day, it stuck, and the rear barrels opened late, making the car surge forward
when i got the car, it had a high pressure fuel pump on it, without a regulator. the floats in the carb. were bent, and i just chalked this up to the high pressure fuel pump
can the 10 pound pump do that?
I was thinking more along the lines of like a 900 CFM carburator
I was just thinking about it
the carb on it came with the car, and it is a 750, but that 50 less CFM's don't bother me
When I was driving the other day, it stuck, and the rear barrels opened late, making the car surge forward
when i got the car, it had a high pressure fuel pump on it, without a regulator. the floats in the carb. were bent, and i just chalked this up to the high pressure fuel pump
can the 10 pound pump do that?
Mopar Lover
Joined: Jul 2008
Posts: 1,682
Likes: 28
From: MICHIGAN
67 I would not even suggest a carb over 750 unless you are running 600hp or more, you would just be wasting money if you went any bigger, you should be able to jet out the carb you have and its way cheaper so i would go to summit or some where and just buy a jeting kit and try different ones to get what you are looking for 
and as far as the floats - it could happen with way to much pressure so i would regulate it
and as far as the floats - it could happen with way to much pressure so i would regulate it
Mopar Lover
Joined: Sep 2008
Posts: 514
Likes: 7
From: South Point OH
What type carb is on there now? If it's Vacuum secondary, there's adjustments to allow tuning of when the secondaries open. What you described could be opening too soon as well as opening too late. If you felt a hesitation, then a surge, odds are it's opening too soon. If you kept a steady power, then noticeably felt a surge well after you nailed it, that's opening too late.
Thread Starter
Mopar Lover
Joined: Jul 2008
Posts: 6,204
Likes: 4
From: Brooklyn, N.Y.
on it right now is a 750 CFM Edelbrock AVS
I cleaned out the carb. earlier this year, when the idle circuit was blocked. It was just dirt blocking it.
I am gonna take the car out again this week, to test to see if it happens again.
I cleaned out the carb. earlier this year, when the idle circuit was blocked. It was just dirt blocking it.
I am gonna take the car out again this week, to test to see if it happens again.
Thread Starter
Mopar Lover
Joined: Jul 2008
Posts: 6,204
Likes: 4
From: Brooklyn, N.Y.
the carb. is over 10 years old
but, it spent nine years of its life sitting
over the summer, when i opened it up, most of the gasoline had turned to varnish, but i cleaned it all out
but, it spent nine years of its life sitting
over the summer, when i opened it up, most of the gasoline had turned to varnish, but i cleaned it all out
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Be careful not to over carb your car. There is a point of diminishing returns and possible damage if you start exceeding 600 cfm on more or less stock engines with factory horse power. But then I run 383's and 400's so maybe you could move up and see how the performance varies.
I have used both Carter AVS and Holley's on my engines. I prefer the Carter but the Holley's deliver some amazing performance. Also, I have been told that the Demon brand works well on the Mopar small blocks.
In the end my generation just believed in three things; Air, spark, and fuel for optimum performance.
Good luck.
I have used both Carter AVS and Holley's on my engines. I prefer the Carter but the Holley's deliver some amazing performance. Also, I have been told that the Demon brand works well on the Mopar small blocks.
In the end my generation just believed in three things; Air, spark, and fuel for optimum performance.
Good luck.
Last edited by 69 Mopar Maniac; Jan 1, 2009 at 07:42 AM.
Guest
Posts: n/a
Do you have any racing friends? They are always upgrading and you can usually get a great deal on a used carb. Show interest in them and they will help you.
For example, I picked up a Holley 750 cfm double pumber comlete with both fuel lines for $125.
It had less than 50 miles on it and just needed to be dusted off and installed on a tunnel ram I picked up from another drag racer for $150.
This hobby is all about networking.
Good luck in your search.
For example, I picked up a Holley 750 cfm double pumber comlete with both fuel lines for $125.
It had less than 50 miles on it and just needed to be dusted off and installed on a tunnel ram I picked up from another drag racer for $150.
This hobby is all about networking.
Good luck in your search.
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