Blenheim take off

[Seeker]

Now before I start, I know the fanbois will come crawling in droves to defend their religion, but none the less:

How does one take off in a Blenheim? I've just wasted 2 hours trying.

Yes, the rad is open.

Yes, the engines are warmed up.

However, I've yet to get as far as wheels up without blowing an engine.

What's the magic formula, with respect to manifold pressure and RPM?

I tell you what, this may be a sim, but it's sure as hell no game (<- obligatory hook for the really real realism fascists that are killing flight sims)