'67 400 with T350, and manual 4speed conversion about to finally begin !!!
All parts sourced, including mechanical linkage. Running long branch Ram Air III exhaust manifolds to Borla exhaust at present.
It's a 67 convertible with a strong freshly rebuilt 68 400 ... and 69 exhaust manifolds.
It seems I may have some room issues with the mechanical linkage, but not definite.

Looking for technical information and/or advice on fit and function of hydraulic clutch upgrades.
Have looked into under dash master slave systems and under hood systems.
Also remote slaves attached to Bell Housing activating factory fork vs hydraulic throwout bearings.

Have heard mixed reviews on hydraulic bearings as far as access difficulties and clutch damage with leaks vs remote slaves. McLeod makes full kit, with remote slave mounted on outside of tranny bell for '67 Firebird. Includes replacement pedal with pedal assembly pin/flanges to existing factory pedal housing bracket for proper throw.
Master cylinder mounts on bracket at firewall using 4 existing factory brake cylinder bolts.

I have power brakes with the large (11" ???) booster. This supposedly mounts behind the booster and the McLeod bracket angles down and toward the left front fender.
Probably need to enlarge hole slightly in firewall for alignment as per what I'm reading, but some say not needed on Camaro forums.

Does anyone know if I have enough clearance with the factory power brake booster ?
Tried calling McLeod technical and put on hold for 20 minutes .....
Any experiences with hydraulic clutch conversion overall in 67-68 Firebirds ?
McLeod Street Pro clutch and new steel flywheel already purchased along with OE BOP bellhousing.
Thank you for any thoughts.