If that is in fact the case, any FW-190 with only the DB-601A would make the fighter just equal to the SPITFIRE II [edge in speed at less than 5km].
Don't be dissapointed

Speed is very important in 1940 (Bf 109E was slightly
slower than Spitfire I and II), but there are also other factors that make a good fighter. Like the rate of roll, visibility, fuel carried - all the things the Fw 190 excelled vs. both Bf 109 and Spitfire. The Damilerized Fw 190 of 1940 should also be faster than the Hurricane I and II by 40+ mph, vs. the Bf 109E with 20+ mph advantage. (yes, I know it is unfair to compare OTL aircraft with napkinwaffe)
ANY power profile on the DB-601N?
Some power charts useful for this thread:
-DB 601A (with 'old' S/C)
link
-DB 601A (with new S/C)
link
-601N
link (works for registered users only?);
table
-Merlin III
link (also for the Merlin 60)
-Merlin 20 series
link (includes also later engines and boost settings, not available in 1940)
BTW DB-601 engine production was only 6234 engine in 1940.[Vajada & Dancey- GERMAN AIRCRAFT INDUSTRY AND PRODUCTION 1933-1945 pp 237] If the engine life is 100 hours- that's only 1708 engine hours per day. Couple of hour per mission means max potential is ~ 854 sortie per day for Me-109. If its a double engine plane, that's only 427 x 2 hour sortie per day.
Kinda reason why I've proposed here the Jumo 211D as the engine for the Fw 190

OTOH - both LW and RAF were more in need of pilots than in fighters.