Carb(s), not EFI: right?

[aks801]

Originally Posted by undy

Carbs can be pretty too

Holy gazeebers!!! Ok, tell me what I'm looking at, and allow me to display my ignorance out in the open. Dual Holley double pumpers w/ vacuum secondaries (whatever the heck that means)? What kind of intake manifold?

That is some nice motor pron there.

[SP01715]

The owner of Hillbank had a GT40 with a carb Roush motor and switched to EFI. He liked the carb motor better and switched back to a carb motor. I also drove a SPF MK111 with a 427 stroker with an EFI stack system, and my carb Roush motor pulled alot harder than the EFI motor. The EFI motor seemed to have a more controlled response through the RPM range, but it did not have the same kick in the pants feel as my carb motor.

EFI definitely has some benefits. I run EFI motors in my boats because of easy starting, and the computer being able to adjust for DA changes. I will always run EFI motors in my High performance boats, but for the Cobra I don't think it's worth the cost IMO. I also don't drive my Cobra in different elevations or drastic temperature changes though, so it is a different animal.

If possible I would drive both. I was set to drop an extra 10k on a roush IR motor until I compared the two in the real world. Kind of the same way I changed my mind about going with a BB...

[undy]

Originally Posted by aks801

Holy gazeebers!!! Ok, tell me what I'm looking at, and allow me to display my ignorance out in the open. Dual Holley double pumpers w/ vacuum secondaries (whatever the heck that means)? What kind of intake manifold?

That is some nice motor pron there.

It's a Dove Tunnel Wedge 2x4 intake with a couple pro-built Trick Fuel, Survival Motorsports sourced 750 vacuum secondary carbs w/ adjustable bleeds, removable secondary jets and a host of custom carb add-ons. It took me around $3K total for everything needed, intake, filter, carbs, gaskets, linkage, fuel system etc.. The labor was provided free by me

Dave

[Ronbo]

Take a look at the Mass-flo system.

It's based off the stock Ford EFI which has logged billions of hours of trouble-free operation in millions of street cars. Not to mention at least doubling the life of the engine.

There's a reason Detroit (and every other car builder) runs these systems, they work.

No computer needed either, just a paper clip to jumper the EEC into self-test.

Carbs suck, and stacks are eye wash.

[aks801]

Originally Posted by Ronbo

Take a look at the Mass-flo system.

It's based off the stock Ford EFI which has logged billions of hours of trouble-free operation in millions of street cars. Not to mention at least doubling the life of the engine.

There's a reason Detroit (and every other car builder) runs these systems, they work.

No computer needed either, just a paper clip to jumper the EEC into self-test.

Carbs suck, and stacks are eye wash.

Yeah, I hear you about how fuel injection has been adopted by everyone, it certainly represents progress especially for mass-produced autos. But I think I MAY want to pick and choose which advances in technology I take advantage of in this car. I'll take the more modern head design and metal composition, may end up going with EFI. But in a lot of areas I want this to be the throwback to the 60's.

I wouldn't go as far as to say "carbs suck" (although that it is literal description of their function), but I sure don't have the experience level that I think you possess so I'm not going to try and argue the point! Thanks for your views though, this is all helping me at this point.

[Ronbo]

While a carb may seem simple it's anything but. When you have to track down what's causing that stumble at 3800RPM and finally give up out of frustration because of the pump cams, jets, squiters, vacuum springs, timing advance curves, vacuum pots, ect., ect.

Yep, carbs suck. So does messing around with fuel maps and other stuff the majority of these "performance" EFI systems need. Swearing at the carburetor that's dumping fuel out the exhaust is not a memory I care to re-live.