now I'm old and broke 
Carbs or Injectors
Posting Guru
Joined: Dec 2006
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jr32560 i would suggest you go to your local speed shop and spend a little money and make friends with the guys who run it they probably have enough crap sitting around they have forgotten about that you can build a whole new badass motor out of lol
Postmaster
Joined: Jan 2009
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Hey T bird i know what you mean . I grew up in the 70s . Carbs . points . one fan belt to run the alt & waterpump . I miss those days . Didnt do a lot of fords back then but did a lot of big block 396-427 chevys . Small block chevys & mopars . Thats when we had the big cubes . Used a lot of 780 - 800 holleys on the big blocks & 650s on the small blocks. Dam it was a lot of fun !!!! . Still to day if i would build a car for the track from scratch i would carb it . I started getting in to EFI when i bought an 88 5.0 stang . It was a lot to learn & still dont now s--t but they run good !!!! When i go to the track i dont even have to pop the hood !!! Once there dialed in theres not to much to do . I did a vega with a 327 in it . Got a lot of parts from Don Hardey race cars in texas . They sold kits for them shortend 12 bolt rears.. headers..ect.. I think there still in bussiness making motors for iragation ???? Oh well now it looks like the push rod motor is about done but we will keep on building them...There just a blast !!! Lew
Postmaster
Joined: Jan 2009
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..Yeah same hear . I think this truck may be my last build but i said that before .. Im 53 but i think im 18..??? Oh well !! Lew
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
There's absolutely no reason to build a 347 for a truck when you have all that room in the engine bay, just go find a 351. You would need an aftermarket 5.0 block to reliably handle all that, but why spend the $$ when Ford already produced a block that'll take it and you can probably find one for the price of a case of beer.
Posting Guru
Joined: Dec 2006
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because then i would have to buy new accessory brackets lol that's actually my reasoning, and because a 347 will rev to like 7k no problem and i just think that would be fun and i can get all the parts for cheap
idk i'm kinda waiting for someone to move up from their aftermarket 5.0 block to something else and i'll just buy it off of them
idk i'm kinda waiting for someone to move up from their aftermarket 5.0 block to something else and i'll just buy it off of them
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
No, you can use all the same accessory brackets, just need a longer belt because everything will be further apart. A 351 will rev to 7k too, guys wind up big blocks more than that and there's a whole lot more mass flying around and the crank bearings are even bigger.
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Posting Guru
Joined: May 2007
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From: North Reading Mass
Good discussion. But back to the OP-
The question that has to answered is whats causing the miss. It could be a fuel related but as suggested a compression test should be run before spending any money for a carb conversion.
I have been messing with FI since VW started using it on the "squarebacks" and carbs for a long time and both have their place. In the interest of not repeating or arguing many of the good discussion points I will keep it short. The inline sixes FI systems have it all over the stock 1v carb versions for performance, but the 1v pre emission sixes was one of the easiest engines to work on.
Up here in the cold New England area EFI is great for those cold mornings for starting and driving. The EFI really shines at low speeds. Most of my SBF and SBC performed about the same on the open road. Being a "mature" user I do appreciate having an on board diagnostic system especially compared to some of those early 70s emission monsters.
cinco ocho
rikard
The question that has to answered is whats causing the miss. It could be a fuel related but as suggested a compression test should be run before spending any money for a carb conversion.
I have been messing with FI since VW started using it on the "squarebacks" and carbs for a long time and both have their place. In the interest of not repeating or arguing many of the good discussion points I will keep it short. The inline sixes FI systems have it all over the stock 1v carb versions for performance, but the 1v pre emission sixes was one of the easiest engines to work on.
Up here in the cold New England area EFI is great for those cold mornings for starting and driving. The EFI really shines at low speeds. Most of my SBF and SBC performed about the same on the open road. Being a "mature" user I do appreciate having an on board diagnostic system especially compared to some of those early 70s emission monsters.
cinco ocho
rikard
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