[99ParkAvenue]

Wasn't sure if building a grill block would generate results that I felt would justify efforts to make adjustable grill block. I used duct tape to close off grill and ran my hi way test loop to see what gains I might expect. Previous hi way loop gave me 33.97. This test loop with just duct tape grill block and synthetic oil gave me 36.6!!! So it looks like it will be well worth it. My everyday temps go from 198F to 206F. On this test loop my temps stayed in that range. City driving in the summer is why I need to make my grill block adjustable.