Reply to "Please help with my Holley carb."

jffrMember

quote:
Originally posted by Johnny Woods:
My Cleveland has never been responsive from idle. There has always been a very slight hesitation before it revs.
When I built the engine 15000 miles ago, I bought a new 600 vacuum secondary from summit. I took advice at the time and added a secondary metering block. My jets are 68 primaries, and 72 secondarys. Other than that I have not changed anything on the carb.

Any ideas what I need to change?

Thanks, Johnny

I don't think the secondary circuit is what is causing it to hesitate. Most of the time with a Holley, the hesitation is due to lack of fuel which is caused by the accellerator pump adjustment. If you adjust it to spray sooner, the hesitation should go away. I run a 650 Holley double pumper and would love to have a 750 double pumper, but I am going to wait for the right fuel injection system to come along.

4/11/074:50 AM

<ul id="{%=id%}ButtonGroup" class="button-group h-popup-buttons even-button-group even-1">
    <li id="{%=id%}Okay_buttonContainer"><a id="{%=id%}Okay" href="javascript:void(0);" class="button success no-margin-bottom h-alert-modal-ok-button" role="button">OK</a><script type="text/javascript">
        (function() {
            function {%=id%}Okay_click(event, data) {
            {%=id%}Popup.hide();
        }
        
                $('#{%=id%}Okay').on('click', {%=id%}Okay_click);
        })();
    </script></li></ul><a href="javascript:void(0);" class="close-reveal-modal" aria-label="Close Modal">&#215;</a><div class="last-modal-focus focus-utility-element" tabindex="0"></div>
</div>
<script type="text/javascript">
        (function() {
            {%=id%}Popup = new SS.Popup.ModalPopup('{%=id%}');
        })();
    </script>

Skip to main content

Membership Required

Remove From Your Block List

Manage Follow Preferences

Block

Please wait...