If you would like to look at two of the best systems out there -- F.A.S.T makes one of the best.

The best system I have found and that will be going on my R3 block engine with aluminum Eddy heads is BigStuff3. Not cheap, but it is going to do what I want it to do with true sequential EFI using a wide band oxygen sensor and a crank trigger off the front pulley. It needs to have a fuel map made for it -- it is not the learning type, but once it is done, why would you want to change it anyway?

No matter what system you get, make sure you get the wide band oxygen sensor as you will find that the learning systems work MUCH better with this type of sensor. Also, if you can get a crank trigger off the front crank pulley compared to the reluctor in the distributor type systems; you will be MUCH happier with that as well. Not cheap; but what good stuff is?

Best of luck!!

Mark