I have a 1968 Camaro with a ZZ454 GM crate motor. I have a Tremec TKX 5 speed and a Moser Trac loc posi 373 gear on order. I currently have a holley 850 dp carb on top. I live in Texas, so other than the heat of July/August, the weather is pretty consistent (unfortunately we have to deal with about 3 weeks of winter, but we seem to survive. I do not have to deal with altitude issues or any of that sort of thing. Now, I like carbs. I like the mechanical nature relative to an old car, but I want to get as much performance as I can out of my set up. Based on the enormous amount of money I have put in the car (basically the only thing that is original is the body!), another $XXX for EFI is not out of the question. However....is the juice worth the squeeze? Start up, warm up, response, tunability (is that a word?), fuel economy (don't really care).....will I see noticeable gains, or is is just more jewelry for an already terrific engine compartment? As always, your input is appreciated!