If you have welding skills and a little bit of fab skill you can put togther an ITB setup for around 500 bucks ...
Guys do it on 4AG Toyota motors for that much and they convert to MAP within the budget
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R.I.P. Kevin "Slo-Si" Gonzalez
Hondata saves lives
S300 and K-Pro tuning 813-433-3721
Crome OBD1 Editing/Chipped ECU's/Wiring/Track Setup

Prayoonto/DSS/Precision/TiAl/JE/Eagle/PPG/Supertech Equipped