as i start from park it seems like the only way the tranny shifts is when im giving it gas and it has a mild shift kit and its a th350/205. could it be a vacuum leak? and my master cylinder is leakin pretty bad from what it looks like it's coming from the lid. im guessing that the gasket is gone to where the master cylinder bolts to the power brake booster. could this cause a vacuum leak????maybe sucking in brake fluid??????