Help. Header clearance issue.

[jtkkwag1]

I have a 69 Firebird, with a Chevy 350 motor, It is bored out to 408 stroker. I am no mechanic or restorer. Other day they installed motor and went fine, when put headers on they did clear steering box by 1/4 inch. Problem was down low. Driver's side barely hit, had to dimple. But passengers side was bad, they had steering turned all the way to right when installed, they later noticed that when they tried to turn wheels back to left they could not. Where centerlink meets with Idler it hit pretty good. It does have 69 Firebird steering linkage. Does anybody out there have 69 Firebird with Chevy motor? I am told that if swap out all 69 Bird linkage with 69 Camaro linkage it would work. They actually are different. Or go with rack and pinion. Please help. Anybody know for sure what to do? Thanks . Jerry