I am starting to do a bit more research as to the cam I want to run and might be leaning more towards the comp XR276HR at this point. It has peak torque per its dyno card around 3700 RPM and maintains over 400ft/lbs at the crank from ~2750RPM to ~4500RPM which would be ideal for my rev range in 3rd gear with 4.56 gears and 35" tires while towing on the highway (~3300 RPM at 75 MPH).

It produces maximum HP per its dyno card at 5200RPM w/373HP. Knowing this, I will require ~117lbs/injector per my calculations.

With that I am looking at the 80lb/hr injectors at a pressure of ~28psi to be able to adequately feed the motor and likely running a 2" bore BBC TB with an adapter and carb (non-egr) manifold.

Are the BBC injectors reliable at this pressure? I have read about supposed "high pressure" versions but want to make sure before I proceed with the build. I've also read that having them at this high of pressure could cause issues with idle. Would a vacuum reference AFPR help solve this issue?