That's Correct...... I really don’t have much of a problem driving up at 9,000’-10,000’ as the road is narrow and speeds are only 30-40 mph. My 270 with 3 on the tree can do that all day long. It’s a rather enjoyable ride. I run into trouble at the start of the grade. I’ll do 50 mph for hours crossing the valley, but once I hit the hill it bogs down……bad. In 10 miles or so I go from ~3,000’ to 5,000’ where traffic is still moving at 65 or better. I hit the hill doing 65 and watch my speed slowly bleed off and my temperature climb as I get farther up the grade. Just as I’m thinking; “This was a bad idea” the grade eases up and all is good. I’ve not checked the vacuum advance mechanism other than to acknowledge that I have one. If the diaphragm in it is shot and not advancing the timing, would that cause the motor to bog down so badly?
Leavitt Lake BTW is a spectacular place to visit if you can handle the rough trail and several creek crossings to get there. Jerry, is your Burb 4WD? Every time I go, I think that with enough ground clearance, a 2WD vehicle could make it. Never had the guts to put that to put that to the test. I did see a guy tow a 14’ aluminum boat on a trailer up there once though. -Steve
