Makes one wonder if the P-51H was such an improvement over the P-51D, why was it not considered suitable for combat in Korea? Hint, it was not because of the greater availability of the D Mustang.
Also, imagine if the plans for the P-51L were carried out with the V-1650-11 engine with a Stromberg speed/density injection-type carburetor and was rated at a peak power of 2270 hp with water injection. Sadly, the order for 1700 were cancelled and not one was ever built.
ack-ack