I use my engine hoist and a lift plate that attaches to the carb mounting area. First, pad the area you don't want to possible get damaged when the intake comes loose with blankets, cardboard, etc. Take all the intake bolts and dizzy out, then lift it up with the engine hoist until the the front end of the car starts rising. I know there is tension on it then. Next, I start rapping on the intake with a heavy rubber mallet to help break the seal. I've had buddies sit on the front bumper, and also pried on the thermostat housing (don't do if it's aluminum.) if the mallet didn't work. Might not be the best way, but when you use The Right Stuff to put the intake on, that intake is stuck on there good!