carb or EFI?

da89cup · 02-27-2001, 05:17 AM

I have a 351W with the stock 5.0 computer. The last owner said he went through like 5 different chips & it still runs funny. It idles at 1000rpm, is that normal for a 5.8? If I turn it down, it stalls. I was thinking of converting to a carb, but I'm also considering a programmable computer. Which way should I go? Whatever way I go, I want the engine to run properly so I can get the most performance out of it. I don't want to send my car to a shop so they can burn a chip there because I'm always going to be upgrading the car, & I don't want to be getting new chips all the time.

84_GT350 · 02-27-2001, 11:09 AM

I'd go with something like a PMS system or the SDS Injection system offered by Western Motorsports. I think that will allow you the tuneability you want. Carbs are fine and, if tuned properly, can out-power an EFI car. That said I've had nothing but pain in the @sses with my carb. Even when it was running right the driveability changes from day to day with the weather. Those two systems are fully adjustable and I think would ultimately offer you the best performance.

------------------
1984 1/2 GT350 (#842 Hatchback w/ T-tops), 302HO, Comp cams Xtreme Energy cam, Carter 625cfm carb, Weiand Stealth intake, MSD distributor, MSD coil, FMS 9mm wires, 1 5/8" MAC unequal shorties, 2 1/2" MAC Prochamber H-pipe, Flowmaster 2 chambers, KYBs, 16"x8" 4 lug Cobra Rs, Falken 245/45ZR16s

rtz · 02-27-2001, 05:52 PM

I'd just leave it at the 1000 idle.

juiceman · 02-27-2001, 11:40 PM

go with a carb. it will allow you to keep upgrading without worrying about things. plus its alot cheaper and you will make more power with the carb right away. think about it , spend 600 now and be good for years or keep upgrading the comp and other equipt. for a few thousand. its a no brainer.

02-27-2001, 05:17 AM	#1
da89cup Registered Member Join Date: Feb 2001 Location: edmonton, alberta, canada Posts: 55	carb or EFI? I have a 351W with the stock 5.0 computer. The last owner said he went through like 5 different chips & it still runs funny. It idles at 1000rpm, is that normal for a 5.8? If I turn it down, it stalls. I was thinking of converting to a carb, but I'm also considering a programmable computer. Which way should I go? Whatever way I go, I want the engine to run properly so I can get the most performance out of it. I don't want to send my car to a shop so they can burn a chip there because I'm always going to be upgrading the car, & I don't want to be getting new chips all the time.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
to carb, or not to carb...this is my question.	black86notch	Windsor Power	4	08-06-2002 08:24 PM
Carb Woahs	RoadWarrior	Classic Mustangs	4	07-27-2002 11:06 AM
'65 Carb Question	Wendell Allen	Classic Mustangs	3	07-13-2002 04:54 AM
efi to carb. /?	WADS56	Windsor Power	0	09-26-2001 12:45 AM
new carb..but how much cfm??	69PonyRider	Classic Mustangs	4	09-13-2001 07:59 AM

02-27-2001, 11:09 AM	#2
84_GT350 Registered Member Join Date: Apr 1999 Location: Overland Park, KS, USA Posts: 1,631	I'd go with something like a PMS system or the SDS Injection system offered by Western Motorsports. I think that will allow you the tuneability you want. Carbs are fine and, if tuned properly, can out-power an EFI car. That said I've had nothing but pain in the @sses with my carb. Even when it was running right the driveability changes from day to day with the weather. Those two systems are fully adjustable and I think would ultimately offer you the best performance. ------------------ 1984 1/2 GT350 (#842 Hatchback w/ T-tops), 302HO, Comp cams Xtreme Energy cam, Carter 625cfm carb, Weiand Stealth intake, MSD distributor, MSD coil, FMS 9mm wires, 1 5/8" MAC unequal shorties, 2 1/2" MAC Prochamber H-pipe, Flowmaster 2 chambers, KYBs, 16"x8" 4 lug Cobra Rs, Falken 245/45ZR16s

02-27-2001, 05:52 PM	#3
rtz Registered Member Join Date: Feb 2001 Location: Edmond, OK Posts: 180	I'd just leave it at the 1000 idle.

02-27-2001, 11:40 PM	#4
juiceman Registered Member Join Date: Jan 2001 Location: ny Posts: 197	go with a carb. it will allow you to keep upgrading without worrying about things. plus its alot cheaper and you will make more power with the carb right away. think about it , spend 600 now and be good for years or keep upgrading the comp and other equipt. for a few thousand. its a no brainer.