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Author Topic:   Carb Help
Glens67
Gearhead

Posts: 325
From: Petaluma
Registered: Mar 2002

posted 09-27-2002 08:41 PM     Click Here to See the Profile for Glens67   Click Here to Email Glens67     Edit/Delete Message   Reply w/Quote
I just got a Holley 830 Cfm DP (in pieces) and am trying to deside on what jets to install. 74s Square or 80s square. It is going on my 67 GT 390 Mustang FB Ed RPM Intake ED RPM Heads Crane cam 572 Lift @68 @ 50 Dur 108 lobe centers Should rpm around 6500, Hooker Super comp headers, 4 speed, 350 gears.Its flatting out at 5200 now with a 750 DP.

Made it to the Final Round last wed night. Screwed up on my stage and red lit. 7th round. Car was running consistant 13.24s

Thanks

------------------
Glen
67 GT 390
65 Galaxie 500 XL 4 Speed
It was not a Red Light they gave me a Slow Tree

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steve'66
Gearhead

Posts: 6522
From: Sonoma,CA,USA
Registered: Mar 2000

posted 09-27-2002 10:27 PM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
Glen,

With a power valve in the primary side I'd go with 74 in the front and 80 in the secondaries to start out with. Especially in Fallon. I'm using 83/88 on the 408 w/o powervalves. Power valve is worth abt. 6 jet sizes, so if you've got it/them plugged then 80/80 should be close. The windsors like more jet in the rear, not sure about the "edsel" engines.
Good job last Wednesday night buddy!

SteveW

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Glens67
Gearhead

Posts: 325
From: Petaluma
Registered: Mar 2002

posted 09-27-2002 10:48 PM     Click Here to See the Profile for Glens67   Click Here to Email Glens67     Edit/Delete Message   Reply w/Quote
Thanks Steve
I deep staged by mistake and gave it to Jim Rasner.

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steve'66
Gearhead

Posts: 6522
From: Sonoma,CA,USA
Registered: Mar 2000

posted 09-27-2002 11:03 PM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
OOPS! Oh well stuff happens.

So are you gonna use power valve(s)?

SteveW

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Glens67
Gearhead

Posts: 325
From: Petaluma
Registered: Mar 2002

posted 09-28-2002 01:59 AM     Click Here to See the Profile for Glens67   Click Here to Email Glens67     Edit/Delete Message   Reply w/Quote
yes

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Mpcoluv
Gearhead

Posts: 945
From: Charlotte NC usa
Registered: Apr 2001

posted 09-28-2002 09:00 AM     Click Here to See the Profile for Mpcoluv   Click Here to Email Mpcoluv     Edit/Delete Message   Reply w/Quote
Is it an annular carb? The Holley annular carbs use a less jet for a given application because of the larger "signal" the boosters see.
The 830 annular is a great carb BTW.....

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steve'66
Gearhead

Posts: 6522
From: Sonoma,CA,USA
Registered: Mar 2000

posted 09-28-2002 04:48 PM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
Glen,

Try 74/80 with a 3.5 power valve, see you next Weds.

SteveW

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