Fuel injection

Sure, I could come up with something on just about any budget. I'll toss out three different ones that I could see working well here.

The system I sell is MegaSquirt - it certainly does get used in your sort of situation. Its biggest high points are a low price and a lot of tuning features. Biggest drawback is a fairly steep learning curve; it can be on the "takes a bit of fiddling to really get it dialed in" side. You'd need to pair the MegaSquirt electronics with a manifold and some other parts from a different supplier, or fabricate the parts.

The Professional Products / Retrotek Powerjection system mentioned earlier falls into the "simple to install" category at a low price. It would probably get my vote if you wanted a complete, turn key package at a very low price and are not looking for a 100% American system. While they recommend using a wideband and self learning programs for most of the tuning, it doesn't lock you out of tuning by hand either, which is a good point over some other "easy" systems that can turn very hard if something goes wrong. Down side, it is a TBI, and our experience has been that these don't have the same mileage improvements as multiport. TBIs don't give up much in power or drivability though.

If you're looking for a more expensive turn key package, my vote would go to Edelbrock. They are kind of a winner by default here as the sell the only complete, turn key, multiport fuel injection package with all new parts out there for your car that I'm aware of, but they've got a very good setup. The ECU is a stripped down EFI Technologies unit (they usually build really high end stuff, like for Indy Cars), they buy their fuel pumps from a company that normally builds military and aircraft parts, and everything else in the kit is top notch too.