P-51H vs P-38L

I wanted to test and see how much faster I could fly the P-51 compared to the P-38. These are not scientific results. The leg was flows by auto pilot after climb was established and wheels were up. I tried to get the ascent profile to be as similar as possible using auto pilot. I hand flew the descent. The flight was over the same leg with no weather, flown at the same 25K feet altitude.The p-51 ended up this flight only about 10 minutes faser under my pilotage.