I bought a Hemi - Project Lit'lphant

[Project D]

Protractor to set properly the angle on the new push rod "guide" ?
(Push rod stuff are totally uncommon here so I have no idea)

On a side note, clamping that cast piece directly on the vice make me cringe. I hope they are soft jaw.
I would have gone with a 1 2 3 block and strap clamps, or better, an aluminium block with tapped hole matching the one on the part (even for a "one time" job it would make sense since you have 4 of them)