Some reading:

S-A Design: Holley Carburetors by Dave Emanuel; Carter Carburetors by Dave Emanuel

H.P Books: Holley Carburetors & Manifolds by Mike Urich and Bill Fisher; Rochester Carburetors by Doug Roe.

Anything by Alex Walordy.

If you can read, you can read these. Books are cheap. Knowledge is priceless...

I couldn't agree more. However, who wants to spend money on a new carb if they don't have to? I guess it comes down to the practical question of "how much is the absolutely right carb gonna cost vs. how much in fuel costs artificially boosted by rapacious Big Brother Petroleum is it gonna save me until I bite the bullet?"

Depends on how big. A 600's primaries really aren't too big for the 300, especially the 4180 with the nicely responsive annular-discharge booster venturii. Now a big 500 CFM 2-bbl (although it comes out to a lower rating when rated by 4-bbl standards at 1.5" Hg. vacuum drop...), or a 3310 750 OTOH...still, people have done it, and it does work...I wouldn't do it. You wouldn't do it (nobody in their right mind would, really, unless they had no other alternative...). But undeniably it'll work in a pinch if that's what ya got and you need it right then, until you find a better carb for the application.

Oh, absolutely. But it might be a bit more of a PITA to rig a Ford auto tranny kickdown if you need one. And a good percent of its secondary bore capacity will be, in Valley Girl idiom: "like, totally wasted!".

As far as carbs go, the old Autolite four barrels from smaller FEs are great carbs that hold their tune forever if built right. I wish I happened to have one kicking around...

Yeah, I saw this in a Fordsix forum awhile back, before they eventually locked it out to the general public and there was far too long and detailed registration process to get in for me to consider it really worth my time (I'm surprised "what do you have for breakfast" wasn't a required field! Nobody needs to know that much personal information. And trusting people to keep it secure is like having meaningless sex without protection these days...)...an interesting idea. Weiand did this (split sideways though) with the X-Celerator manifold, which comes with a couple different plenum dividers (there are others that are just cast that way, like some Offies and Weiands etc.), although I question how much value this has on a V8 over a good dual-plane, and I've seen dyno shootouts to reinforce these questions. I imagine you could bias the plenum volume a little to account for the hotter-running rear cylinders if you wanted to get into things that deeply, or certainly have a little advantage of flexibility in fine-tuning either end with the idle screw and staggered jetting. It seems like an effective alternative (there's still runner size...) to the Offy DP, with a tradeoff or two here and there. Definitely a good idea worthy of consideration!

Ok, lunch break over. Back to work for me...

 

Back from the dead...

$50buck's advice is totally counterintuitive to the common knowledge out there regarding the Holley 390 and the 300cid. Even Offenhauser recommends this carb for use with their DP manifolds for max power...

All I can say is that I am ditching my Holley 600 for a 390. The 600 is just too much of a PITA to get good results. Excuse my herd mentality, however.

 

Hi, … I would have a question for 50 Buck if I could …

I have a 86-I6 in which the #6piston is dead, but it’s still running quite good for now (surprisingly) ! … So, I bought a 95-I6 that I intend to put in my pickup next spring … removing all EFI stuff and put my 1bbl carb on it, V-belt etc. ! (Mine have no EGR, no Cat, or anything like that, it look like an engine built in the 50’s)

By looking at this post and many others it seem that the best thing to do for my engine will be to put a 4bbl on it … I’m not looking for a race truck but it seem that the 1bbl is not quite good for this engine !

So my question is ; with a 95-I6 what would be the best 4bbl & jetting that I should use ?

Thank !