24 lb, fuel pump, MAF, TB. How much HP?

Maybe 5hp...if that. First off, you do not need 24lb injectors or the fuel pump. Secondly, your intake manifold itself is what is still going to keep you from getting any power from those additional mods. It's almost like drinking from a straw...you made one end of the straw larger and now you want to make the other end just as big...but the whole middle of the straw is still restrictive.

Unless you found a great deal on those, I would hold off and save for a good intake and some heads....or a good intake and get some stock heads ported. If you insist on getting those parts, I would hold off on installing them until you have some heads and an intake. Either way, I wouldn't go with those injectors or pump just yet.

likely what will happen is the addition of the aftermarket C&L meter and the injectors (upgrading the injectors is really not needed right now in any way for car with present mods) is you will fatten up the fuel curve just enough to eliminate any benefit that a larger maf and TB would offer ( which would be as stated..in the 5hp range). Would also mention the C&L meters can become somewhat bitchy with those fender mount BBK air inlet pipes...you would likely need to clock (rotate) the meter or return to the stock air box and K&N filter if you have any issues....that's IF you went with a CandL meter and IF you had any issues.