I need 2 long silicone hoses with 90 degree bends at one end for an OE '77 heater hose set up. The EB vendors only have heater hose kits that are for the earlier models. These kits have 1 long hose that I need 2 of. The other 2 hoses include one short one and another with 2 bends to place the temperature control valve behind the carb. The '77s have the valve just ahead of the air cleaner support, using a longer cable to control the valve. So I need 2 of the long hoses with the 90 degree bend at the heater core. No one at the vendors is familiar with the '77 configuration. Neither are those who make the heater hose kits, and the vendors are unwilling to sell individual parts from the same "kits" that could correct the problem. My local parts store has the hoses in rubber but not silicone. Oddly the '77 truck shop manual is also incorrect in their diagrams for '77s.