There is a verse in the AV1611 that I wonder if anyone wantes to comment on.

Acts 19:2 He said unto them, Have ye received the Holy Ghost since ye believed? And they said unto him, We have not so much as heard whether there be any Holy Ghost.

It reads differently in the NKJV:

Acts 19:2 he said to them, “Did you receive the Holy Spirit when you believed?”
So they said to him, “We have not so much as heard whether there is a Holy Spirit.”

In the KJV, the word "since" is used. In the NKJV, "when" is used, changing the meaning.

In verse 6, it says, "And when Paul had laid his hands upon them, the Holy Ghost came on them; and they spake with tongues, and prophesied." KJV

"And when Paul had laid hands on them, the Holy Spirit came upon them, and they spoke with tongues and prophesied". NKJV