Dirt in engine when removing intake manifold?

Borrow a vacuum cleaner with a long slender wand to suck it out. Or you can take some duct tape and a short piece of garden hose to stick on the end of the regular vacuum cleaner hose. Stick that down in the ports to suck up the debris.

I usually put a piece of duct tape over the openings of the lower manifold if ther upper is off for any length of time.

When I pulled the virgin factory intake a few years back, I watched in slow motion horror as the back end slipped out of my hand and poomf, sand and grunge all over the place. I wiped up what I could and left the rest to the oil filter. 3 years later, still no problems. I think macro particles like sand are less of a problem than metal shavings. The engine can easily crush sand particles but metal particles dont crush. Remember, this is a 300 ft-lbs of torque machine with plenty of rotating mass. It will happily demolish quite a bit of debris.

Dont worry too much about it, just give it a 10 minute driveway idle then change the oil.

I always use the shop vac with a 1' pc of fuel line or vacuum line duct taped into the hose.