VERY rough calculation. (To get a more accurate picture, call a mortgage broker you might use for your house and ask his advice.)
35% of your income is approximately $3350/ month. which is approximately the total amount of debt the banks will allow. If the car loan is $350/ month, you have 3K left for mortgage payments. Which translates into roughly a $600,000 mortgage. Which, if you put down 20% ($150,000), means a $750,000 house.