Youre all Woodheads...:doh: ?
No Vacuumpump ...all over the World(!!!) can't create a load over -0,99 Atmospheres.
One 4stroke Piston .325cc pull's ~1600liter / 400 Gal. Air in 1 Minute(!) at 10ooo Rev. (0,325liter x 5000 = 1625 liter) Don't worry about the Carbs!
In the End the Slide also...