Here's one for the Holley/Eddy debate...

Frankenchevy said:

That’s the elevation at the top, but you don’t start at sea level.

You must be registered for see images attach

Click to expand...

Ah! I stand corrected!!I have never been there, it’s on my bucket list.

Matt69olds said:

Ah! I stand corrected!!I have never been there, it’s on my bucket list.

Click to expand...

It would’ve been real exciting back in the day when a good portion of the course was unpaved. They’ve been progressively paving over the years to make it safer.

I had always read the top of pikes peak was almost 15k feet. It sound like it’s on top of a 10000 feet mountain.

Frankenchevy said:

It would’ve been real exciting back in the day when a good portion of the course was unpaved. They’ve been progressively paving over the years to make it safer.

Click to expand...

I have seen video of the race from the 60-70s, and Roadkill garage took an old junkyard Chevelle (I think) to the top. I noticed it was paved.

The difference was pretty dramatic

I’m here in denver. We are at 5780 feet elevation at my house. Drive down to CO spring which is a little higher at 6000 feet. Drive into the mountains to the start of the course and you are at approximately 9200 feet. THEN YOU START TO DRIVE UP THE BIGGEST DAMN MOUNTAIN to the top. You can barely breathe at the top. There is no air. At sea level, air pressure is 14.7 psi (1 bar). Here in denver, the air pressure is 12.1 psi right now from my barometer
That’s here at 5800!feet. Driving to the top of pikes peak there is 9 psi. You lungs need to adapt. Your carburetor needs to be modified to live here

14k is up there. I used to boulder (rock climbing on baby rocks) in the garden of the gods near kissing camels when I was in CO Springs area. I got headaches for the first week or so. The eastern sierras in CA actually have the most peaks over 14k in the continental 48 iirc. Mt. Whitney being the tallest in the 48.

The US has very interesting geology indeed.

Mauna Kea in Hawaii is the tallest in the world, though far from the highest. I’ll be there at the end of the month.

Matt69olds said:

I have seen video of the race from the 60-70s, and Roadkill garage took an old junkyard Chevelle (I think) to the top. I noticed it was paved.

The difference was pretty dramatic

Click to expand...

It was Roadkill and they took a 67 chevy biscayne coupe. I like that episode alot.
It made it up no problem, but couldn't make it down because of the drum brakes, haha

justhorns said:

I’m here in denver. We are at 5780 feet elevation at my house. Drive down to CO spring which is a little higher at 6000 feet. Drive into the mountains to the start of the course and you are at approximately 9200 feet. THEN YOU START TO DRIVE UP THE BIGGEST DAMN MOUNTAIN to the top. You can barely breathe at the top. There is no air. At sea level, air pressure is 14.7 psi (1 bar). Here in denver, the air pressure is 12.1 psi right now from my barometer
That’s here at 5800!feet. Driving to the top of pikes peak there is 9 psi. You lungs need to adapt. Your carburetor needs to be modified to live here

Click to expand...

I live here at 7000ft, going up to 10k or so is no big deal for me, i dont feel any different ..
When i travel down to sea level though, i feel like superman, haha

An interesting topic the influence altitude has on jetting. Maybe not as noticeable in an auto as in a boat, but my experience was a loss of 1 rpm for every 10' of elevation climbed in a jet boat I used to own. It was a 300hp 5.7 in front of a 3 stage Hamilton pump. The principles are similar to an engine on a dyno in that it is just a pump with a nozzle (restriction) behind it to control top rpm. It doesn't care weather the boat is at full speed or jumping out of a hole shot from a stand still.
It was a Vortec with an Edelbrock carb. Anyway, at sea level where we normally run, I had the pump tuned for 4450 at wide open throttle. One of the biggest adventures I took it on was a 120km run after launching at 1000'. We immediately lost 100 rpm at WOT when launching. During the 120km run upstream, we climbed another 1000'. We lost another 100 rpm when at the top where we spent several days on a hunt. I initially was thinking maybe plugs fowling as we worked her pretty hard, but once back at sea level. it was right back to the 4450.
That boat was a beast and I really miss it.

Frankenchevy said:

14k is up there. I used to boulder (rock climbing on baby rocks) in the garden of the gods near kissing camels when I was in CO Springs area. I got headaches for the first week or so. The eastern sierras in CA actually have the most peaks over 14k in the continental 48 iirc. Mt. Whitney being the tallest in the 48.

The US has very interesting geology indeed.

Mauna Kea in Hawaii is the tallest in the world, though far from the highest. I’ll be there at the end of the month.

Click to expand...

I've probably hiked Mt. Whitney 5-8x in my life. Since I normally live near sea level, it's a pretty drastic change and I sometimes get sick with headaches and N/V/D. One of the last trips I brought my son who was 10 at the time and my M-I-L who has 68. We went a little slower as it was their first-time backpacking and a 70yo lady who we met on the trail tagged along as she needed some support. My son didn't have any issues and my MIL just was winded but we all made it without issue. I had no issues on that trip at all. It's interesting to see how many people get severely sick at those altitudes while others don't have any issues.

Edlebrock for the win,lol.

Just got all these today for my blazer, for free..

A well tuned q jet on a stock or mild sbc works ok in my experience. But much more a Holley is king. Just my experience, and I've reworked every q jet I've ever owned. Because I needed too. I have a sweet running one on my 77 K10 350 right now.

Paladin said:

HOLLEY RULES!!!!! Anything else is just a Wannabee!!! Next question. LOL

Click to expand...

I only hit the like because it's you @Paladin
Im still in the qjet camp.

QBuff02 said:

I have an 850 Demon on my 454 and love it! Lots of tuneability and the drivability and throttle response is spot on.

Click to expand...

I had one before the swap. I have no complaints for off the shelf. I didn't do any fine tuning (jets n such)....stock off the shelf and adjusted it as it came out the box.