I received the slant pressure tester yesterday and immediately pumped the radiator up to 19lbs. After 3 hours and retightening all my hoses the pressure dropped to just under 16lbs. I let it sit all night and it dropped just above 15lbs. So my assumption is no intake leak. Correct assumption? Block tester was run at least 5 times and the blue stayed blue. So I am still puzzled by the excess white smoke out the tail pipe but I will be going back to DMZ for my 3rd time to get my QQ plates tomorrow and will run the car on the highway and see if what has collected over the last 10 years of sitting blows/burns out of the exhaust system.