Finally took it for a drive!!!

Discussion in 'General Maverick/Comet' started by scooper77515, Feb 17, 2008.

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  1. blugene

    blugene Senior member Supporting Member

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    :scratchchin:I'm trying to remember but I think my "hickup" went away with a different pump cam...:stirthepot:
     
    blugene, Feb 17, 2008
    #16
  2. scooper77515

    scooper77515 No current projects.

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    OK, let me throw this out there...

    I wrote down all the numbers that are left on the carb. There is a 6R 5534 B on top, and L47764 and 8519 and 8520 on primary block, 747762 and 6502 and 6501 on secondary block.

    Is there any chance this is a 4776 carb, which would make it fall on the 600cfm range in that chart?

    Gene, I think I need to mess with the cams also. I was cruising a minute ago getting steaks and beer (it is officially a grocery getter again, but has a really odd lopey idle). When I needed to get up and go from 30 mph to about 50 (not stomping it), it hiccupped, and I think that is a cam issue.
     
    scooper77515, Feb 17, 2008
    #17
  3. ratio411

    ratio411 Member

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    160 or more is fine.
    Oil detergents don't work below that, but after 160 are fine.
    In other words, below 160 will cause sludge.
    Plus oil should run a few degrees warmer than water I would think.

    Add to that that spring is coming... and all your driving is not highway.
     
    ratio411, Feb 17, 2008
    #18
  4. ratio411

    ratio411 Member

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    It is a 4776, which is a 600 DP.

    Edit:
    Well, you don't have an air horn do you?
    If not, then it is still up in the air which it is, without measuring the throttle bores. (at the bottom of the TB)
    The base plates were interchangable for a hundred CFM up or down.
     
    Last edited: Feb 17, 2008
    ratio411, Feb 17, 2008
    #19
  5. scooper77515

    scooper77515 No current projects.

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    I hope it IS a 600, it would be better match to my engine.

    Ratio, is that a "for-sure" on tha?

    Oh, and I ordered the the big kit $43 with no shipping from O'Reilly. It comes in tomorrow, and I will look at it and make sure it is correct.
     
    scooper77515, Feb 17, 2008
    #20
  6. M.A.V.

    M.A.V. Yep,my real initials.

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    Gene is right...Squirter change or pump cam change should cure the hiccups.:Handshake
     
    M.A.V., Feb 17, 2008
    #21
  7. Grabber5.0

    Grabber5.0 Gear-head wannabe

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    I usually just hold my breath for a while. :huh:
     
    Grabber5.0, Feb 17, 2008
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  8. M.A.V.

    M.A.V. Yep,my real initials.

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    I`ve also heard if you sneak up on the car abd then SCARE the Hell out of it ... That can work!:rofl2:
     
    M.A.V., Feb 17, 2008
    #23
  9. Derek 5oComet

    Derek 5oComet Tire burner

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    Sound like it is a 600DP that good those carbs are nice,like Ratio said they used the throttle plates for up to 100 cfm difference.What are the little nubers on the throttle plates (blades)themselves i could check them to one of the 12 Holleys i have.
    Also don't jump to fast on the bandwagon about changing pump cams.In 16 years of playing with holleys i have never put a non stock pump cam in.I can usually get any stumbles out by tuning the accelerator pump adjustment or changing squirter sizes. Not saying that a pump cam change is not possible just would hate to see you buying stuff you may not need
     
    Derek 5oComet, Feb 17, 2008
    #24
  10. blugene

    blugene Senior member Supporting Member

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    12 Holleys and not 1 pump cam mod, wow. Not much playing around with the performance aspects of it. Maybe you have the tuning down and are able to tune it better than most, especialy me. If you would try changing that cam, you might feel the performance they can create. I feel this one mod does quite a change in the way it performs. It can actually be night and day...
    I spent $7.99 to get it to perform the way I wanted to and get to the finish line first. As for the jets, never changed them from factory sizes. I personly could try that and see if things do get better, but just don't think it would, on mine. So now I may spend what Scott spent on jets, but may not gain any improvement. I have noticed that alot of us who actually try and get the most out of our Holleys, have parts left over. :2cents::tiphat:
    P.S. I wish I had 12 Holleys :cool:
     
    blugene, Feb 17, 2008
    #25
  11. Eddie Maverick

    Eddie Maverick General Garageman

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    post a youtube video of it running, I wanna hear it run
     
    Eddie Maverick, Feb 17, 2008
    #26
  12. scooper77515

    scooper77515 No current projects.

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    Don't know how...

    I can do audio only, but haven't figured out how to convert from 8mm vid camera to wmv, or whatever everyone else can watch.

    Any hints I can try?
     
    scooper77515, Feb 17, 2008
    #27
  13. ratio411

    ratio411 Member

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    The #330 cam with the screw in position #1 and hole #1 works perfect on any 30cc pump.
    Just play with the squirters and linkage adjustment to get the shot pinned down.

    330 is a pink cam with 3 holes in it. It is often stock in Holleys.
     
    ratio411, Feb 17, 2008
    #28
  14. 71gold

    71gold Frank Cooper Supporting Member

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    ...are all of them ...bad...or...did you have to buy that many to get one good one...:huh:

    ...Frank...
     
    71gold, Feb 17, 2008
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  15. scooper77515

    scooper77515 No current projects.

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    Ratio (and whoever else might know), can we verify that my carb is 600 cfm based on these numbers?

    Or can I measure anything to verify it?

    When wagesofsin and I were doing the initial tune, he kept saying things like "if this is a 750, it should be dying by now" so it sounds like he was thinking it was a smaller carb a while back.

    It would really be nice to verify that this is a 600...that would work so much better with my current engine setup. Even though my last Edelbrock was 600 cfm, I think this double pumper would be able to pick up where that Edel left off...
     
    scooper77515, Feb 17, 2008
    #30
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