69 chevy 4x4 4spd headers?

[razo88]

so I have a 69 chevy 4x4 with a 4spd and im looking to get some headers for it...most of the research ive done shows that some alteration to the clutch z bar is gonna be needed...does anyone have any input on headers that fit without too much alteration?
a little info on the engine, its pretty much stock 1.72 in/1.50 ex, mild cam i think its GVL .447 intake lift, 210 intake @ .050 duration. just have an edelbrock intake and HEI
pics would be helpful? thanx