Hi all just got a few questions that I'd like to know the answer to, any help would be greatly appreciated.

I've been reading up on all the EFI threads and there's just a few things I want to get my head around before I start stripping out my engine.

Is EFI really that reliable? My MFI engine has done me good but so many people go on about how reliable EFI is.

Is it worth getting a EFI block or just getting my current engine blocked drilled?

Can I use my clutch and gearbox that I already have? I know that the flywheel needs to be changed though.

What management do you guys recomend? Cosworth management has been done so many times which is when I started looking into MS.. But don't know too much about it so I'm in 2 minds of which route to take.

Power gains.. what modifications are needed to get past 250bhp?

OFAB and OFAC.. Can someone please just clear up what the difference is between them..

When chopping the loom up is it a case of removing the MFI engine wiring and replacing it with the 8 wires from the EFI loom and soldering/taping it up? cant be that simple can it? or is it


Sorry if they seem like stupid questions but I just want to make sure of everything before I take any drastic action!