You are right... and I am right
V8 build with DB 600Aa
V7 build with DB 600Aa
V9 build with Jumo 210C later changed for Jumo 210Ea
V10 build with DB600Aa later changed for DB 601Aa
V11 build with DB 600Aa later changed for DB 601Aa
I've got data about range for prototype V10with DB 600Aa only.
For the He 112 with a DB601 engine and just 317 L fuel even to reach parity with the Me 109 with the same engine and 400 L fuel capacity, it would have had to enjoy a 26% cruise speed advantage - and to beat it, even more. As far as I can tell, the He 112 did not have such a speed advantage even judging it by Heinkel's own numbers.