Halve and bone the chickens completely, leaving the first wing joint intact.
In a small saute pan, blanch the garlic cloves in boiling water for 1 minute. Drain. Cut the garlic into paper-thin slices. Toss them in a small bowl with the parsley and a little salt and pepper.
Stuff a little of the garlic mixture into the pockets under the skin of the chicken breasts and thighs (about 2 teaspoons per chicken). Transfer the chicken to a large plate, cover with plastic wrap and chill until ready to use.
Heat a charcoal or gas grill until moderately hot. Grill the chickens 7 to 10 minutes per side, or just until the pinkness disappears. Do not overcook.
Heat the butter in a saute pan and in it, gently saute the remaining garlic mixture. Add the lemon juice and season, to taste, with salt and pepper.
Divide the chicken halves among 4 large heated dinner plates. Top with the Sauteed garlic and parsley. Serve with fresh vegetables cooked al dente.
Recipe courtesy Wolfgang Puck, The Wolfgang Puck Cookbook, 1986