What k member are you using? Don't leave that out. Mine hit idler arm and drivers side frame. I fixed both but the idler are solution was to grind on the idler arm a tad bit
stock style 70 small block k-member is what i had in the car when i first installed the TTI headers.. only thing they came close to was the brake proportioning valve but it didn't touch it. had plenty of clearance on all my steering linkage.