Weber's or IR Injection

[Jeb]

The early Speedpro systems were not the greatest, being geared towards racers and WOT operation primarily though also sold to streeters.

There is a new version out which is supposed to be far superior to what was previously available.

I AM NOT RECOMMMENDING OR ENDORSING SPEEDPRO.

I bring it up because it seems to have become the aftermarket efi-of-choice with the SBC crowd and as such, has a lot of aftermarket support both in parts (GM sensors) and people familiar with it.

I have heard good things about MOTEC. Though all good things heard about it start with how pricy a good version of it (capable of closed-loop operation) is.

I use Electromotive. For startup map creation, it basically set itself up after some basic engine parameters were entered. It uses GM sensors. It requires additional tuning, but it incorporates an autotune function where you basically turn on the data log feature and drive. Based on actual feedback from the driving session it can update your map. Beyond that, yes it still requires tuning on your part. Some people consider that to be fun.

And I agree that for a mild 302, use a factory system, you can buy a complete harness now from Painless that will let you use a factory controller in a streetrod type vehicle.