Sebring in march

["Henry A. Morrison" <dos_gusanos@email.msn.com>]

Greetings, I am planning to travel to Sebring for some HSR vintage races
around the 12 hour.  The only map of the course I have shows it to be 4.75
miles long (great for a Big Healey) is this still true or has the course
been shortened?  I am also wondering how long the longest straight is to
take a better guess at what gears to put in.................Cheers Henry
Morrison, Cedar Crest, NM