Worth it going from SEFI to 4bbl?

[Paul_]

The car has been sitting for 3+ years, so I anticipate having to work on the motor before it's semi-drivable. If I'm digging into the motor, I was debating on converting to a 4bbl carb. The car won't be a daily driver as I have the Rodeo or my B2500 for that. I'm not looking for anything over 250hp, so the build doesn't need to be extreme. I've done some basic searching through the archives here, and have some general ideas as to what I'm going to do.

I need input for as to what heads I should run, a cam with a nice lope, and what to run for a carb. I'm not too concerned with going wide ratio with the transmission. I'm running 2.73s right now, and I'm probably going to go with 3.55s. Debate.

[mrltd]

get a thumpr cam, all noise no power. or just do a shitty job tuning the carb.

you can reach you power goal with a stock EFI explorer motor. Or easily make 200hp with some e7s a stock HO cam, and a stock HO intake...

[King_V]

I'll admit I have some bias in this regard, but other than maybe accessibility issues when working under the hood, given that funky upper intake, I don't know what, if any, benefit there'd be going to a carb.

I mean, wouldn't cost about the same, or less, to upgrade the injectors and the ECU, than to get an intake, carb, etc.

Unless you've got the parts lying around already, of course....

[87gtVIC]

If you want a little project i see no reason in NOT going for it, make it like you want it. But power can still be made by upgrading the components of the current sefi. Your choice...

off topic: I have fuel injection and was only considering to go to 4 barrel carburator to install a roots blower underneath it...

[Grand Marquis GT]

4bbls are cool, but i'd stick with the EFI.

Owning a quick EFI panther has swayed me

[mrltd]

If you want a little project i see no reason in NOT going for it, make it like you want it. But power can still be made by upgrading the components of the current sefi. Your choice...

off topic: I have fuel injection and was only considering to go to 4 barrel carburator to install a roots blower underneath it...

Yeah, but you can also toss a roots/whipple ON the EFi intake too....

[Southern_Pride]

In my opinion, stick with the efi. Even the carb can be headache when you get into fucked up engine combo's. Go with the tried an true unless you have tons of money and time to dump into it. My ho swap and carb conversion has turned into a decent amount of hassle with the cam and stock heads trying to make it run properly.

[87gtVIC]

Yeah, but you can also toss a roots/whipple ON the EFi intake too....

where are you hiding that shit man i been looking all around.

[mrltd]

where are you hiding that shit man i been looking all around.

Make it or buy a kenne bell for a fox body stang.(or find a lightning app one)

[86VickyLX]

Stay EFI, unless you want to drop the tank to get that electronic fuel pump out of there, so you don't flood your engine. You'd have to tune the carb to get it anywhere near the reliability and efficiency of an EFI system, though it can be done. Leave the EFI there, upgrade to HO, you'll be glad you did.

[Pesty351]

Personally I hate wires so any way I can get rid of some I do. Thats one of the reasons I prefer carb. That and I find it easier to work on.

[p71towny]

EFI. Hell, I bet if you sprayed some seafoam fogger in the cylinders, primed the oil system and cranked it over a few times it would fire right up.

[import convert]

doing a carb swap can be fun but also a headache. you got to deal with droppin gthe fuel pressure wireing the distributer and running new fuel lines and stuff. but it does looke cool when its done and its different. still has its problems like making sure the motor is warm and messing witht he choke and hte throttle linkage.

if you do an H.O swap youll need to do a mass air swap and swap other things like fuel injector and stuff like that. all comes down to personal prefferance and how motivated you are

[Pesty351]

you got to deal with droppin gthe fuel pressure wireing the distributer and running new fuel lines and stuff.

Just cut the power wires running to the pump and run a mechanical. I used the stock fuel lines and as far as thee dizzy go easy a get an old points convert it with a pertronix kit and your good to go.

[p71towny]

Just cut the power wires running to the pump and run a mechanical. I used the stock fuel lines and as far as thee dizzy go easy a get an old points convert it with a pertronix kit and your good to go.

Its best to either run a fuel pressure regualator that has a return port or put in a different pickup as its not good to try and suck fuel through the in-tank fuel pump.