Have searched with no luck. I own a 1969 SS/RS 396 (born with options)12B,if that matters. In the Z22 section the AIM shows hose routing down each side of Rad. opening on front of core support it also shows headlight bumper brkts. mounted on core. Are these holes drilled? Do they have to be added? Need location and measurements (exact) for all these. I do not see where they would go on my support(it is a GM NOS)Also, need pic of voltage reg-horn relay mounting on backside. My car sustained front damage before I acquired car. I believe core support was replaced (as well as header,hood anf L.fender). It is missing the H.L.bumpers on core and the hoses just have the plastic tie wraps (original) hanging down in front of core. I suspect the horn relay is mounted wrong as well, compared to my other 2 69's I have, but they are not RS equipped cars. So,please help me with pics and info before it gets painted. Car is completely dis-assembled now for paint and body work. Thanks,Bentley.