Timeslips from Los Angeles County Raceway in Palmdale, CA.
FROM THE LACR.NET WEB SITE...
LACR Altitude Correction:
LACR is 2,640 ft. above sea level.
To figure the altitude factor the formula is as follows:
ET: Multiply your et (at LACR) by .9679 MPH:
Multiply your mph (at LACR) by 1.0337
This will give you the ET and MPH at sea level.
We run an 10.99 @125 mph at LACR if you correct that to sea level that's a 10.64 @ 129 mph.

My BEST RUN:
60': 2.308
1/8 : 10.13
1/4 ET: 15.32
MPH: 88.52
Location and Date: LACR..Wed, Feb. 6, 2002