MD/PhD chances?

I am a senior in a top 10 school studying biomedical engineering and mechanical engineering. cGPA=sGPA=3.9. MCAT 508. Asian. I will graduate from college when I am 19 (spent 3 years to get two engineering majors) but I'm not sure if this will help me or hold me back. EC: 3 years of basic science research in a biomechanics lab, 3 years in a genetic lab. One publication and several presentations. Great LORs from famous professors (some of which are my PIs) with stuff like "the best... MD/PhD chances?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums