Guest Beefcake Posted September 20, 2002 Share Posted September 20, 2002 Is it worth the time and money to change my 350 to a fuel injected one? If so what are the pros and cons? Quote Link to comment Share on other sites More sharing options...
Guest greimann Posted September 21, 2002 Share Posted September 21, 2002 That is really a question of personal choice. I would say yes it is worth it because I did it. Heat related fuel problems were the main motivator. Others may have a carbureted setup that functions fine for them and EFI is just out of the question. If you want to have most of the benefits of EFI, but reduce your exposure to cost and installation hassle, go with the Holley Commander 950 throttle body FI. It will fit on your existing 4 barrel manifold and provide you with the flexibility and tunability that EFI offers. Once tuned, it will give you far better fuel control than a carb, better overall power, and fuel economy. If you want to go with port injection, you gain a bit on the accuracy of fuel distribution and smoothness, but almost double the cost of a system. Quote Link to comment Share on other sites More sharing options...
Guest the_dj Posted September 21, 2002 Share Posted September 21, 2002 With a wideband O2 sensor, a good carb, and a good bit of time tuning, how well would the carb run? Can you get it to have good gas mileage and be smooth by tuning to 14.7 AFR in the drive range and tune the high power band to 12.5 for best safety and power? Or is it a futile attempt? Sam Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted September 21, 2002 Share Posted September 21, 2002 It'll meter in certain areas at 14.7:1 but the difference is to break it down crudely the difference between a perfume atomizer mist of fuel and a weed sprayer. The computer can change things to maintain as close to stoch as possible while the carb is a dumb device and it'll hit it now and then but can do nothing to change it outside of change circuits. Don't get me wrong, I think a O2 sensor is still the best way to tune a carb, but you can't compare the fuel metering of a carb to fuel injection ever. There is just way more precise control over the fuel duration of spray and better atomization of the fuel due to the higher pressure of the fuel injection fuel pressures and they're spray pattern at the injector nozzles. As a added plus, you get longer running motors. Less raw gas dumped into the motor and past the rings, less oil dilution and thus more longitivity. Thats why you see motors these days running 170-180k miles. The initial buy into to fuel injection is a bit expensive, but its worth the price in fuel economy, power and longitivity of the engine. Regards, Lone Quote Link to comment Share on other sites More sharing options...
danj Posted September 22, 2002 Share Posted September 22, 2002 The reasons Lone listed were the same reasons I decided to change out my carb and intake for the Edelbrock Pro Flo EFI system. Programability from inside the car for both performance and economy were 2 features I couldn't resist. It's still a work in progress so I'll let you know how it turns out. Dan H Quote Link to comment Share on other sites More sharing options...
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