If you walk into the Second Avenue Deli - a kosher eatery that relocated from the East Village, when it actually was on 2nd Avenue, to Midtown - with $24.95 in your wallet, you'll have just enough moolah to buy a little snack called the 'Instant Heart Attack.' The 804-calorie towering sandwich, made up of sliced pastrami and fried potato latkes, is like the Tim Tebow at Carnegie Deli - a symbol of food excess that tastes delicious all the way to the doctor. Except the one at Second Avenue faced a bit of a legal problem. Enter The Heart...