Rich,

The problem with discussing this topic is the fact that it varies with air consumption.

I'm only really considering getting the maximum bhp from an injector at WOT on a turbo engine as it's not normal practice to run a seqential injection engine at 720 deg inj duration.

Regards port puddling, No believe it or not its no issue at all!!

Fuel puddling behind the valve does not have any real detriment at all!!!

As a good example consider bosch K jet which sprays fuel continuously yet the emissions are FAR superior to any carburettor setup despite the fact the carburetor setup is in essence an inlet valve open time only fed system as opposed to the k jet full cycle duration.