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Author Topic: Holley v WW Stromberg  (Read 3276 times)
Grah
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« on: October 14, 2005, 07:14:35 AM »
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I know this topic has been posted before, or a similar topic.
I am getting through the process of re building my 186 (192) Holden 6 engine. Current build is Yella Terra Bathurst 6000 head, extractor exhausts, mild cam, electronic ignition, WW strombeg Carb on a standard maifold, Celica steel case 5 speed, etc.

With the engine in bits I am going to fit a lumpy cam, XU1 type grind or above, the Yella Terra head with 308 valve springs, etc etc. I also have a 390 Holley 4 barrel with a Cain manifold.

Which carb set up is the best for a Holden 6 in this state of tune. There appears to be so many opinions on this I would seek expert advice from the forum gurus? No advise on multi carb set ups please.

If the 390 is the go, could someone tell me the approx power valve and jet settings that work reasonably well to get it running before fine tuning?

I await your estimemed response oh gurus.
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Grah
2door350
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« Reply #1 on: October 17, 2005, 08:06:24 AM »
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Gday,

I've had two different 390's and now have a 465 on my hot 202.  Approx power valve will depend on how much overlap you new cam will have coz a big overlap affects manifold vacuum severly.  I have a 310 deg duration 46/85 solid wade cam and my 202 idles at 800rpm!!  I'm running a 3.5 powervalve, 56 front jets and 58 rear with a quick change seccondary kit.  My biggest tip is to buy a really good fuel filter if you want it to be reliable.  Once setup you get great economy and awesome power.

Also - be careful with the 390's as there are two different ones.  One is too small to work on a hot six -  the other works a treat.  I can't remember the list numbers of hand but i've got it written down somewhere as i've made this mistake b4...will suss it out and let u know.

I've also run triple 48 dellortos - good fun but a pain in the arse to keep in tune and zero economy.  Stick to the four barrel - it may take some time to get spot on but you wont have to touch it again.

Hope this helps
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Grah
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« Reply #2 on: October 17, 2005, 07:10:58 PM »
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Mate,

Thanks for your info. I'm not sure of the tpye of Holley I have but it's on a Cain manifold. The only stumbling thing is the fact its got an electrical choke, but i think you can get manual kits for them?

If you can find those numbers it would be of great help.

Thanks again for the info.

Grah.
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Grah
2door350
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« Reply #3 on: October 17, 2005, 10:21:38 PM »
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Electric chokes are great - easy to setup.  I run one one my 465!
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