craig, i seen some doug thorley headers on ebay! i have the same cpp perches and had problems finding headers that would work! the problem is you need headers that cylinders 1 & 2 tubes come out go straight back past 3 & 4 to clear the perches! they aren't cheap, heres a link to some i think will fit!
http://www.ebay.com/itm/Doug-Thorley...item4cfcca40fa