BigCrate, from my P-38 Pilots Manual
Pilots Flight Operating Instructions for Army Models P-38H series, P-38J series, P-38L-1 , L-5, and F-5B Airplanes. from Aviation Publications, ISBN # 0-87994-019-0
P-38H: Combat weight of 16,100 lbs; 178 mph climb speed; 54" HG and 3000 RPM; Engine models V-1710-89 & V-1710-91
P-38J: Combat weight of 17,400 lbs; 180 mph climb speed; 54" HG and 3000 RPM; Engine models V-1710-89 & V-1710-91
P-38L: Combat weight of 17,400 lbs; 180 mph climb speed; 54" HG and 3000 RPM; Engine models V-1710-111 & V-1710-113
P-38H P-38J P-38
SL-5k 3500 3200 3200
5k-10k 3400 3100 3100
10k-15k 3200 2900 2900
15k-25k 2500 2400 2400
25k-35k 1200 1000 1000
From what I can see your data most closely matches the climbrate of a P-38H.
Also note that the P-38L in Aces High has a normal loaded weight of 17,500 lbs (from the help page) which is just 100 lbs different from the loaded weight of my pilots manual. And your loaded weight is closest to that of the P-38H.