I have found that opening the upper Rad hose at the T-stat, and opening the smaller heater hose at the upper T-stat fitting, drivers side, both open and then filling the plastic bottle to the very top (cap off at all times) several times works very well and very fast!! Once the coolant starts to come out of the small heater hose-water pump connection at the T-Stat the block is full, and the radiator is 90% full. Then seal it up, bottle cap on, all hoses reconnected, and run the engine at 3500 rpm in park for a while (2-3 minutes) and then let it cool and refill the bottle to about 3/4s full, and repeat running the engine (Bottle cap on).
If you use a hose mender on the heater hose line, and open that small line at the hose mender, about half way to the heater core, half way from the T-Stat fitting, you get the radiator closer to 100% full the first time.
MAKE sure it it is heater hose line from the T-Stat fitting, drivers side, and not the left side water pump fitting you use!!!!! It is higher and works best for letting air out the block as it bypasses the closed T-Stat!!!
