I like the system I have on my car. F&B Throttle Bodies. https://www.fbthrottlebodies.com/6-pack/ and a FAST ECU Controller https://www.fuelairspark.com/efi-systems/xfi-fuel-injection-systems.html

I have run this system for over ten year, with no major issues. The only thing I have had to do is, tighten the bolts on the plate to manifold, air leaks, and file the throttle blades a little bit to keep them from sticking, aluminum to brass cool at different rates, so when it cold down the throttle blades stuck a little.

No it was not cheap but it works great!