Actually, I've worked at several shops in the past, and they DO do it this way (I know, that doesn't sound right haha) but usually there is a "drip" system that attaches to the brake booster hose, and slowly drips about 2 drops per second of the solvent, but they also have a t-fitting to allow some air to come in with the solvent. That system takes a looong time... Works good, but you can do a similar job at home with seafoam. Just go slowly.
Shoot, we just did a 91 honda accord tonight that my friend recently bought. Sucked about a half can in through the brake booster hose over about 10 minutes, let it sit for 20 minutes. When he fired it up and drove off, it smoked pretty thick. Neighbor asked if the car was on fire haha, my friend said he noticed a pretty good difference climbing the hills on the freeway going home and a smoother idle. We poured a can of berryman in the tank about half tank ago, too...
Last edited by TaurusSE98; 11-13-2012 at 03:03 AM.