Preheat the grill to a high 350 - 375 degrees and set for indirect heat.
Slice the top off the garlic head, drizzle with some olive oil and wrap in a foil sheet. Place it on the grill to roast. Remove it once tender. This takes about 40 minutes.
Cut down the middle of the lobster tail shell. Separate and remove from the meat only leaving the tail attached. Season it with Dad's Steak seasoning
Grill the lobster tail for about 20 minutes or until the internal temperature reaches 140 degrees.
For the butter, in a mixing bowl, add 1 block of room temperature butter, chopped parsley. Next squeeze out the roasted garlic, add freshly squeezed lemon juice and crushed red peppers. Mix all the ingredients together until the butter is completely mashed and blended in evenly.
Once the grilled lobster tail has rested, generously pour some of the melted garlic butter over the top, squeeze some lemon juice and top with freshly chopped parsley