Hot Rods Holley 600, rebuild or get a new one?

The 600 Holley I have is starting to show its age, and I'm tossing up whether to rebuild it which will include the throttle shaft.......its a vac sec that's near enough to 40yrs old and I'm wondering how the new style 4150 aluminium versions compare.........here in Oz the rebuild bits and throttle plate will leave no change from $200.........a new alloy 600 is around $450.........the engine is a mild 318 Poly on a Weiand 7503 intake.......and yep its mounted backwards which its has been for 40yrs.....lol......appreciate any comments re the rebuild/replace choice.......thanks.....Andy Douglas

 

That one sounds like it's shot.... Get a new one.... I'd keep the old one for spare parts...

 

Throw it away and get a Summit copy of a Ford Autolite..

 

Quick Fuel makes a really good 600 vacuum carb. That Summit carb they bought from Holley is a great street carb.

 

rebuild for 200 or replace for 450? id rebuild and keep 250 in my pocket!

 

Let's see what your going to get for $450 because I'm looking on summits site and not seeing it.

 

I'm in Oztralia......anything from Summit will be double by the time it gets here, it'll be either straight Oz ebay or maybe Oz Rocket in Sydney.........anyone have actual experience with the alloy Holley 600 vac sec?..........andyd

 

I do not, but just recently found out that some of the new ones do not have externally adjustable floats, which is a Holley feature that I like.

 

Andy, just buy a new one. They have a lot of features the old ones didn't. The Mustang has an alloy one with no problems.

 

What " features" are worth $250 ???

 

I just rechecked the going price for a throttle base.......$250 Oz, $55 for the rebuild kit, postage would be about $30........at least $335, maybe $350........the new ones starting to look good...especially the shiney versions.......lol.......and I will want one with the externally adjustable float.............gotta check with the finance director.......lol..........andyd

 

Do none of the Aussie speed shops stock Holley rebuild kits on their shelves? you quote of $30 seems steep if it's being posted internally in Aus so I guess you were thinking of importing one?

 

I don't know how it is down under, but the new Holley might be better suited for 90% gas. That said, the newer ones have plastic external parts vs the older models die cast.

 

new carb company, FST has a 600 for $300. No experience with it.
https://fstcarb.com/products/40600/

 

That place is somewhere near me.... Gotta look it up!...

 

What does it cost to ship a carb to Oz , I'll buy and rebuild 1850's all day long for $200 + shipping