I tried the same thing as you did only on a 2.0 honda.
Better get a Weber 32/36 DGEV or a 34/34 DGAS.
They are better then the 5gtt carb. You're going to choke this engine with this r5 carb.
If you're going to stay carb, get a good rising rate (1:1) FPR (brandstofdruk regelaar) adjustable from 2 to ± 30 psi. (mallory 4309 or malpassi) And a pump to keep up with this pressure and demand.
If you're getting in to boost you need to add fuelpressure.
Your stock Fuelpressure is ± 3-4psi. If your boostpressure is 10 psi, you need 13-14psi fuelpressure when in full-boost.
Make sure you pull some timing wen going into boost.
Just sold a complete CapriIII with 2.0i Pinto 5-speed for ± € 850
If you have any more question, you can PM me in dutch...