Here are two things I think are key for what you are trying to do.
You or a Pro can't tune with your maf/inj's as they are too small
Money don't have anything to do with this issue.
No matter which way you tune ... you gotta part with the money
IF
you wanna do it right for max power
AND
near perfect drivability
Please understand me here ... not tryin to be a hard azz
I do understand about the money all too well
For now ... you got two options to tune your combo .................
I'll give you the best (mo money) first
AND
the second best (less money) but if I was you ..................
I'd only use that method until you can move to the other method.
1 Maf of sufficient size to handle airflow needs of a blown combo.
Something like a Lightning maf, Granatelli, ProM 77/80 with 42lb cal, etc.
42lb inj will work nicely with your plans.
At least 255 intank pump will be needed to push enough fuel.
A custom tune by you or a Pro
2 Inj's first
Use a fmu (mechannical tuning) to elevate fuel pressure which makes your 24's act larger.
Now for the maf ... not as simple as the inj's
For a maf, you or may not be able to use the maf you now got.
As has been said above, things don't match like they should
HOWEVER
Even if you got a maf caled for 19's that would not work
cause
your blown combo would peg that baby maf in a heart-beat
Heck, you very well could peg a 24 and maybe a 36lb caled maf
Moving to a different subject about your concerns ....................
If you wanna learn to self tune ...................
You could not have started with a more challenging way to learn.
Blown combos are way less forgiving of mistakes than NA.
Not saying you can't do it.
Just more difficult.
Hope this helps you in some way
At least you now got some more stuff to think about
Grady