which carb
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Senior Member
Joined: Sep 2000
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From: South Dakota, USA
which carb
I might be buyin a '78 F-150, regular cab, short box, 4x4 this weekend. The engine is a 429 that is bored 30 over. It has a edelbrock 600 cfm carb on it right now. I went to the parts store today and the guy there said I needed a 750cfm. I looked at gettin a Holley. The price was around $320.
I'm just getting ideas right now, I am test driving the pickup tomorrow and going from there. He said is is starving from a lack of fuel, which I believe. So what carb do you think I should put on it if I buy it?
I'm just getting ideas right now, I am test driving the pickup tomorrow and going from there. He said is is starving from a lack of fuel, which I believe. So what carb do you think I should put on it if I buy it?
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Joined: Aug 2000
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From: Lockport, NY USA
Yeah 750 CFM sounds about right for that engine. A friend of mine just bought one of those new Holley Truck Avenger carbs, supposed to be just like a Street Avenger, easy set up, quick change secondaries ect. but it won't starve for fuel on high angles off roading. So far he loves it and hasn't even gone offroading yet. Might be something to look at. Infact he has pretty much the exact same truck.
-Jon
-Jon
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Senior Member
Joined: Sep 2000
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From: South Dakota, USA
I went and drove the pickup this weekend. The truck runs great and it just needs more fuel to the fire. He said that he had a 750cfm on it before but it flooded easy. Like I said the engine is a 429 that is bored 30 over, and it has a mild RV cam in it.
Which carb would you guys reccomend, I like the price of the Edelbrocks. Would a 650 be sufficient or should I put on another 750? He also never had the choke hooked up (that could have been his problem)
Which carb would you guys reccomend, I like the price of the Edelbrocks. Would a 650 be sufficient or should I put on another 750? He also never had the choke hooked up (that could have been his problem)
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Joined: Dec 2001
Posts: 98
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From: Washington
carbs
Go with a street demon carb.Holleys are junk.The street demons
are made by Barry Grant and he does a killer job with these carbs.
They are not much more than a holley.Sounds like he may have a double pumper on there.If you go with a holley, get a 750 with vacuum secondaries.
are made by Barry Grant and he does a killer job with these carbs.
They are not much more than a holley.Sounds like he may have a double pumper on there.If you go with a holley, get a 750 with vacuum secondaries.
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Joined: Sep 1999
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From: Ventura, California
The 3310 is the basic Holley 750cfm w/ vacuum secondaries. It's got center hung floats and dual inlets. In my opinion, the best overall carb Holley ever made.
If you don't mind spending a little more, the 80770 is a great carb too. It's basically the same as the 3310, except it flows 770cfm, and has all the goodies that come with the Street Avenger series.
I don't know enough about the Truck Avenger series to recommend it or not. It appears to be similar in design to the 1850, which is the basic Holley 600cfm w/ vacuum secondaries, with it's side hung floats and single inlet. I prefer center hung floats and dual inlets, but that's just me.
In any case, I would highly recommend a Holley over an Edelbrock. Big time. Holley's are much more "tunable", and are easy to work on.
Take care,
-Chris
If you don't mind spending a little more, the 80770 is a great carb too. It's basically the same as the 3310, except it flows 770cfm, and has all the goodies that come with the Street Avenger series.
I don't know enough about the Truck Avenger series to recommend it or not. It appears to be similar in design to the 1850, which is the basic Holley 600cfm w/ vacuum secondaries, with it's side hung floats and single inlet. I prefer center hung floats and dual inlets, but that's just me.
In any case, I would highly recommend a Holley over an Edelbrock. Big time. Holley's are much more "tunable", and are easy to work on.
Take care,
-Chris
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From: North Little Rock, AR - USA
I ran an Edlebrock (625? or 650? CFM) on a '78 4x4 w/a 400M bored .030 over for many years. Worked great!
Edelbrocks are tuneable - just different than Holley's. They offer more than enough tuneability for a street engine. Buy a Strip Kit(an assortment of power rods, jets, and enrichment springs) and the off-road spring/seat kit for the floats. Also find a tuning instruction book at a speed shop.
There's no diaphram power valve to blow if it ever backfires. Thats handled by the power rods and springs. They pull fuel from both bowls all the time so you have fresh fuel when you want to get into the secondary's. Once set up properly, an Edelbrock(or Carter AFB) is something you can run and forget about for a very long time.
Edelbrocks are tuneable - just different than Holley's. They offer more than enough tuneability for a street engine. Buy a Strip Kit(an assortment of power rods, jets, and enrichment springs) and the off-road spring/seat kit for the floats. Also find a tuning instruction book at a speed shop.
There's no diaphram power valve to blow if it ever backfires. Thats handled by the power rods and springs. They pull fuel from both bowls all the time so you have fresh fuel when you want to get into the secondary's. Once set up properly, an Edelbrock(or Carter AFB) is something you can run and forget about for a very long time.