I don't think that is the recommended spot to attach the fuel pump 'pulse' line. I would be concerned about oil splashing into the line. I have seen the pulse line connected to a 'banjo' fitting and a hollow side case bolt, that appeared to be a factory set-up. A simple connection to the breather tube should work. Both of these could leave oil in the pulse line, so route the line so oil drains back into the motor, I have connected a barb fitting to the intake manifold for the pulse.