Garden hose near by for cooling in case fans can't keep up.
Fire Extinguisher near by,
Fill carburetor before trying to start,
Charge battery night before
Once it fires off, get rpm, adjust timing on the fly, KEEP RPM up 1600, step up to 1800 after 15 minutes, step up to 2000 last 4 -5 minutes
Pre-lube before dropping in distributor, Last step before starting.

Don't wait days to start, all internal grease could settle in pan, pre-lube, drop in distributor, set timing by eye, and start motor.