oil is getting gone please help

[bigblock79]

ok i got this 84 with a new crate 350 goodwhench. oil is getting gone and it don't leak a drop on payment. the tailgate gets black all over it and the bumper. it is dry sut is what it feels like and the tail pipes are not oiley just black sut. it wips right off and is dry. if you drive it 50 miles on hiway you will put a quart and a half of oil in it if you drive it about 100 mies on back rode. it will lose 2 quarts. the harder you drive the more it drinks oil. it the oil on the tailgate was wet i would know wher it is going. it got a elderbrock carb and a power plus intake the motor is really dry all over it does have a oil pan bolt broke off in it. you can tell a little comes out but not enough to even leak. need help 15$ a week for oil gets high. thanks sorry so long