Ticking noise when cold @ 3k rpm?

[BC240]

Hey Guys,

I did an oil flush, replaced with the usual sythetic oil and added some fuel system cleaner.

Now when my car is cold I hear a ticking noise around 2000-3000rpm for the first 5 mins of driving

Thing is after the cleansing it pulls like a bat out of hell, especially on the low end.

Thanks