yes, as grigg stated, try gulfway,
http://www.racensur.com/it took me over 2 years to find a company, them, to insure my 57 for an agreed value, (20k), and not have the truck in a garage. no mileage restrictions either, and i can drive it any day of the week.
all that for just over $400.00 a year.
my buddy has his 1960 edsel insured with them for 15k and he pays something like 300 +.
leonard