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Holley street avenger-570 cfm carb questions

Posted By Melly 6 Years Ago
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Melly
Posted 6 Years Ago
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Place the on 57 312, g heads, 57 dist. and intake . Trying to tune it. Had some electrical issues that I believe have got sorted out now trying to tune. Issues I believe is with the vacuum secondary not opening. I am running a three speed with OD. Is that a issue? Have watched many Holley videos. They suggest that vacuum secondary carbs. are more for AT ?
Videos show you could by a small supply store of parts to tune. Nozzles, plastic cams, vacuum secondary springs. So figure I would ask as I am not knowing where to start.
Hopefully you all have not got tired of my problems.
Starts fine, idles good, just seem to not open secondary. Going to try the paper clip trick tomorrow. Seem to pull good but more like a 2 barrel.
Looking for direction. Maybe some one could tell what they are using for plastic cam color, squirter nozzle size, and vacuum secondary spring color.
Again hope I am note wearing my welcome out and you all give me the boot. I believe you all and this sight a great for us that are challenged.

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Forum Post Holley street avenger-570 cfm carb questions By Melly ( 6 Years Ago )
Forum Post I am running a similar Holley carb on my 292 (Holley 465). My 292 has... By Florida_Phil ( 6 Years Ago )
Forum Post When the vacuum secondaries are operating properly, the transition... By Ted ( 6 Years Ago )
Forum Post today I tried the paper clip trick. Three times clip keep falling off.... By Melly ( 6 Years Ago )
Forum Post The instructions with the carb go over the secondary tuning procedure.... By charliemccraney ( 6 Years Ago )
Forum Post Holley's are great carburetors. I've had them on every classic car I... By Florida_Phil ( 6 Years Ago )
Forum Post I have a 390 CFM on my 312, I can feel the secondary's open but they... By kevink1955 ( 6 Years Ago )
Forum Post First off THANK YOU ALL for you support and info. It did me good to... By Melly ( 6 Years Ago )
Forum Post Ordinarily, you would swap nozzles, first. However, on my 570, the #1... By charliemccraney ( 6 Years Ago )
Forum Post Great information. Don’t know much about internals of the 312 I have... By Melly ( 6 Years Ago )
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Forum Post What are U setting the initial Timing at? Is the Vacuum Advance ported... By oldcarmark ( 6 Years Ago )
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Forum Post Well you all came through again! Everything is falling into place and... By Melly ( 6 Years Ago )
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