Hi altitude carb at sea level

[gun-G]

What can I expect when I get a Santa Fe car (7000 ft) here at Sea level? Rough idle? No idle? Won't start? ( 64 Riv with a Carter AFB)Thanks in advance, Steve

[LARRY70GS]

You can expect leaned out jetting if the carb was calibrated for high altitude. Depending on how lean it is, you might have hesitation, pinging or overheating. Carter sells a strip kit with an assortment of rods and jets. Should be guys on this BB who can steer you in the right direction.

[gun-G]

OK Larry, thanks...I was wondering if iot would be a problem for the carrier. Once it gets here, it may not even be the right carb, but it's definately a hi-alt carb. Steve

[BadBrad]

I take mine up to 7,000 feet from near sea level once a year for a show in the mountains 90 miles away. When I get there the car has lost most of its throttle response. I compensate by cranking about 7 degrees of advance in with my MSD timing control. This returns about 40 percent of the response. I also switch to the high altitude choke setting - I've found this choke setting works better at low altitude too so I left it. If I was there for longer than the week I usually spend I'd probably pop open the Q-jet and lean out the primary rods and jets. Based on how fat the car feels I'd probably go 4 steps leaner (68 from 72 for example). On a Q-jet (and I believe a Carter) you must do both jets and rods so as to maintain your part-throttle cruise mixture. Leaning the mixture would help compensate for the lack of oxygen at altitude. When I sleep up there I wear a breathe-right. Nobody makes one of these for the car :laugh: .

Apply this inversely to your situation.

[gun-G]

Great. at least it won't be DOA. thanks again, Steve