I was visiting the Jegs site looking for the correct Hotchkiss part number for rear springs (double pigtail) for my 67 SS BB. 515-1900R goes to '66 and 515-1901R starts at 68. Also, the Edelbrock IAS classics seem to have two part numbers that list as 67 Chevelle all -- 350-34041 and 350-34043. Has anyone ordered these two guys and know what the correct part numbers are?

Any help would be appreciated. The Jegs guy didn't know either.