Is your engine beyond the break-in period? More heat during the break-in. Had a hell of a time getting my motor running cooler; but this was appreciably higher temps than what you describe. I had read that some shrouds can impede cooling. Quite a science with desired air-flow. I found an OEM shroud and replaced the 4-blade fan with a 7. Among other things, I found anti-freeze ratios can impact cooling…a lower ratio of coolant is a better friend with cooling. Since I don’t drive my car in cold weather and sits in a heated garage, I reduced the mix to around 70-30%. Added a product “Water-Wetter” though there’s some household products I was informed about that can do the same as this product does cheaper. As well, in my hunt to drop the temp, is oil viscosity. I had been running racing oil 20-50 (hi-zinc with my solid lifters). Higher viz oils can retain engine heat from some oil expert’s articles, saying think more on what the necessity is for hi-viz oils. Will qualify I don’t have a motor near what you have; but mine lost some iron with boring out. Researching this, I found my oil pressure always very high, so switched to a lower viz racing oil. There’s more science here with recommended oil viscosity depending on the build. But, heavier weight oils aren’t always the best. Anyway, reduced my temp a good 15-degrees.