Difrences in preformance, functionality, what can be added on ect. i want oppinions cuase im swtiching from carb to one or the other..... so i want a good idea of how both work what can be added on to give extra power/ preformace that sort of thing

 

Tricky, tricky, tricky. Stock for stock, the TPI will put out more oomph at the low end but dies at the upper rpm band. But who wants to keep their car stock?

The opinions of this are loaded... so... here goes.

Carb: GREAT all-around, cheap, excellent way to get a lotta power out of a car. Plenty of aftermarket.

TBI: Great middle-ground. Not too much aftermarket, though, but they have a LOT of untapped potential. Pretty easy to use/rebuild, very few parts on it.

TPI: Expensive! Very! Great way to get power and good gas mileage out of a car.

As for tuning... they're all easy to tune. It just depends on what you're good with. Mechanically inclined? Then changing the jets on a carb is simple. Good with computers? Burning your own eproms is a snap.

Honestly I haven't heard any REAL good arguments either way. "Fuel injection is better because it's easier to start on cold days!" So what. It's not hard to pump the gas pedal. "Fuel injection gets better gas mileage!" Okay, so there's a tone of truth to that. More effecient air/fuel delivery. But my 'vette from 81 gets 23+ miles to the gallon average. That ain't that bad. "Non computer controlled cars are easier to work on!" No they ain't. A carb is a wonderfully complex device. That excuse is just another way of saying, "I'm not good with computers."

Personally, I'll stick with carbs. I love my computer, and I love my car. But ***, please keep them seperate, they both have enough problems on their own. Just find what you like best. And remember, if you adamantly say one injection method is superior to the other, it means you don't know how to tune the other.

 

Carburetors? I think my father told me a story about them before. Maybe it was my grandfather.

 

Why in the world would you go with TBI??? Granted it's not the fairest to compare them stock to stock as far as on engines, since the 305 TBI engines got crappier heads.

Enkil makes some good points. The thing I love about carbs, is, hardly any wires at all...

 

this is so true. ill take a picture of all the wires that i no longer need after my tbi to carb conversion.

 

Well if you are going to convert to fuel injection, depending on your setup I would consider swapping to an LT1 intake. Their is a guy on this board that sells a manifold that will bolt right up. Also the swap should not be much more that a TPI conversion, if at all.

 

TPI is good if you have the money and far as tunning goes FI tunning is done through the prom minus the fuel pressure. TBI has tons of advantages over TPI and is easier to live with then a carb. You can get a wide assorment of aftermarket TBI parts some will even intergrate into a stock system like intake manifolds, you can choose any 4bbl intake manifold you want and slap a TBI adaptor on it open up two bolt holes and there ya go. You can even get an aftermarket 4 injector TBI unit from Holley or a MPI injection system all well below the price of good aftermarket TPI parts.

 

well thought about it and it seems that tbi might be a better investment, but how easy would it be to set up for someone as car illiterat as me? and how much woudl it run to get some good preformace out of it?

 

It depends on what you have now. The aftermarket systems are just extended bolt on's. I was considering swaping my carbed 76 PU to a Holley 4DI projection system but decided I can tune a carb just a good. The 510-504-225 is a good system and is under $1500 they even give you all the tunning software to play with, intergrating it into a 3rdgen shouldent be too hard maybe half a days work and it bolts onto a square flange intake manifold. The next time It starts raining cash one of these systems is going onto the firebird.

 

do u have a link to it? sorry but im kinda busy so a link would help more