sea level to 7000 ft - The 1947 - Present Chevrolet & GMC Truck Message Board Network

*Javy* · 06-05-2004, 04:31 AM

I recently drove my 427 powered CST to Big Bear.CA (7000 ft)from Los Angeles,Ca.After 4000 feet it really started running crappy and even my 4 wheel power disc brakes suffered.I understand with less oxygen it's going to
run rich but I never have experienced this condition before.I'm running a above average cam so I expect not to have the best vacuum available for
my brakes.Due to this high elevation I'm here to tell you guys it makes a big
difference.
KUDOS to crew chiefs that tune Hot Rods at Denver NHRA events!
I welcome any comments or recommendations.
Thanks,
Javy

68 Suburban · 06-05-2004, 09:59 AM

When I drive Phx to Flagstaff, I have to lean out my 1406 half way there. Otherwise I smell a lot of raw fuel

Bowtie67 · 06-05-2004, 04:33 PM

Long time no hear Javy, the dash and glove box look great in my truck and have gotten a few compliments. How the new house doing? They say if you can get a vehicle really tuned well at a higher elevation and then bring it down to sea level you can general knock off a full second on a 1/4 mile run.

*Javy* · 06-05-2004, 05:47 PM

Glad to hear you're happy with dash and glove box door.
I would like to see pictures.
Thanks,
Javy

Bowtie67 · 06-05-2004, 07:34 PM

Quote:

Originally Posted by Javy

Glad to hear you're happy with dash and glove box door.
I would like to see pictures.
Thanks,
Javy

Here is some Picks, the upper & Lower control arms went out tuesday to have them redone to lift the front up a couple of inches. Then it's supposed to head to the body shop to get Hood Painted and some scratches taken care of.

http://67-72chevytrucks.com/vboard/s...t=garage+today

Jeepster376 · 06-05-2004, 07:38 PM

I used to ride my motorcycle up there, I remember around Shugarloaf my bike could barely maintain 50 mph. That's a bike that could easily go 120 or more at sea level. It's really thin up there.

Jeepster376 · 06-05-2004, 07:45 PM

Quote:

Originally Posted by 68 Suburban

When I drive Phx to Flagstaff, I have to lean out my 1406 half way there. Otherwise I smell a lot of raw fuel

How do you do that? Do you just correct idle mixture, or do you perhaps change your metering rods? I suppose you could carry a special set of rods for high elevations. Correcting for idle only, would still leave you lacking for power.

mocwon · 06-05-2004, 08:18 PM

Javy,

I bought a billet instrument cluster from you some time back but my resto has slowed a bit due to the body work that takes me forever to do. Are you still selling those killer glove box doors? If so, how much including shipping to Austin, TX. Thanks, Greg

06-05-2004, 04:31 AM	#1
Javy Account Suspended Join Date: Jan 2004 Posts: 129	sea level to 7000 ft I recently drove my 427 powered CST to Big Bear.CA (7000 ft)from Los Angeles,Ca.After 4000 feet it really started running crappy and even my 4 wheel power disc brakes suffered.I understand with less oxygen it's going to run rich but I never have experienced this condition before.I'm running a above average cam so I expect not to have the best vacuum available for my brakes.Due to this high elevation I'm here to tell you guys it makes a big difference. KUDOS to crew chiefs that tune Hot Rods at Denver NHRA events! I welcome any comments or recommendations. Thanks, Javy

06-05-2004, 09:59 AM	#2
68 Suburban Registered User Join Date: Oct 2000 Location: From Chicago, Live in Phoenix, AZ Posts: 6,802	When I drive Phx to Flagstaff, I have to lean out my 1406 half way there. Otherwise I smell a lot of raw fuel __________________ Just sitting here contemplating contemplation.

06-05-2004, 04:33 PM	#3
Bowtie67 Registered User Join Date: Jan 2004 Location: NH Posts: 2,266	Long time no hear Javy, the dash and glove box look great in my truck and have gotten a few compliments. How the new house doing? They say if you can get a vehicle really tuned well at a higher elevation and then bring it down to sea level you can general knock off a full second on a 1/4 mile run. __________________ 1967 C10 - SWBSS Pro Street 427sbc, 700R4 & 4.10 Gears 1948 Chevy FleetMaster Coupe, LS1, (almost done) 1950 Chevy StyleLine Coupe 250/6 3x2 Dueces 2009 Toyota Tundra 1996 Harley RoadKing "I maybe getting old, but I can still burn rubber with the best of them"

06-05-2004, 07:38 PM	#6
Jeepster376 Registered User Join Date: Feb 2004 Location: Massachusetts Posts: 269	I used to ride my motorcycle up there, I remember around Shugarloaf my bike could barely maintain 50 mph. That's a bike that could easily go 120 or more at sea level. It's really thin up there. __________________ 72 Cheyenne Super 4x4 SWB

06-05-2004, 08:18 PM	#8
mocwon Keep On Truckin' Join Date: Mar 2003 Location: Buda, Texas Posts: 1,354	Javy, I bought a billet instrument cluster from you some time back but my resto has slowed a bit due to the body work that takes me forever to do. Are you still selling those killer glove box doors? If so, how much including shipping to Austin, TX. Thanks, Greg __________________ Just Passin' Thru Some projects are like herding cats; others are like putting out fires; this one was like herding cats on fire.....

06-05-2004, 05:47 PM	#4
Javy Account Suspended Join Date: Jan 2004 Posts: 129	Glad to hear you're happy with dash and glove box door. I would like to see pictures. Thanks, Javy

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