-Size 4 OC Target lock breaker PA (maximum kick available)
Fire it twice and your ship melts

In terms of damage over time you'll do a lot better with Efficient rather than OC.
-3-4 Frag cannons ( 1 disruptive, 1 corrosive and 1 drag with possibility of an additional disruptive)
As others have said, combined with the PA, you'll have to be right on top of an opponent to do damage. The FDL is fast ... but unless you have the patience to god-roll its drives, in the short-term almost everything else will be faster. It'll be good for hitting the big-3 ships (though they can low-wake on you at will) but not much else.
Drag munition is a really weak special at the best of times, and virtually useless against someone flying FA-off.
-1 pulse laser with scramble spec
A super-penetrator rail will do far more module damage and let you pick which module malfunctions.
I am unsure though as to what to outfit the core, optional and utilities with.
For a starter FDL - *not an optimal build*, but one which will work reasonably well without engineering everything to god-roll stage and one which is reasonably forgiving to fly for a beginner, I'd recommend something like:
Core: DD5 thrusters, charge enhanced G5 distributor
Military armour (you're running away or dying anyway when shields drop - it's just to keep you alive a little longer, and a lot cheaper than reactive) modded heavy-duty
OC1 power plant. Very cheap material cost; keep re-rolling it until you get the secondary that gives you +18-20% power.
Lightweight the sensors and life support to get a bit of extra speed.
FSD: either 2D for extra speed but low-waking only, or a 2A with a range mod to give you a few escape options, or a full size range modded if you expect to use it for inter-system escorts.
Optional: If you have prismatics available, 5A SCB, 4A SCB, 4A prismatic. Otherwise, use a regular 4A (really not great, but unless you get lucky and get an excellent DD5 roll straight away, biweaves will basically be weaker regular shields because you won't be able to gain enough range to recharge them) and pledge to Aisling *now*. Mod the shields for thermal resistance. (Regular or prismatic most of your health is in the SCBs *anyway*, so time your banks when the feedback cascade rails are pointed away from you)
1A interdictor, 2A HRP.
Utilities: 2xheavy duty shield boosters, 2xresistance boosters, 1xChaff, 1xheat sink with a high-capacity mod (double banking will mean this is *just* enough)
Weapons: until you've got those god rolls on the drives, expect to be fighting most other medium ships at their choice of range, not yours, so fit at least some weapons which do decent damage at medium/long range. A lot of this is personal taste. Consider fitting a mix of gimballed and fixed - all gimballed will get you chaffed to death, but unless your flying skills are up to hitting a PvP-spec opponent all fixed won't have you doing much damage either.
As you gain experience you'll want to swap out quite a bit of this stuff - with a top-grade pilot and otherwise identical engineering quality, a biweave FDL usually has the edge over a prismatic one, for example, but for beginners the prismatic is likely to beat the biweave.