WOW ! very well done personal art form on wheels with such attention to Alfa visual details . I'd like to know more about the builder and your passing it to the future.
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I'm almost
too familiar with early small block six's :
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looks like early 144/170 4 Main / 3 Freeze Plug / small bellhouse, high mount starter engine block C1DE ( 2.77 BH or 2Spd Auto BH Bolt Pattern ). .. . . . - -looks to have original carb coolant passage so probably OEM carb, accessories on early matching cylinder head. etc..
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144/170 block series with 4 mains , 3 frz plugs flat top pistons and smaller cyl bore than
200 but dimensionally same for accessories, mounts etc.
Same 170 4 main engine was used through early 1970's in Falcon, Mustang, Maverick/Comet. I have a 1971 4 main 170 (C8DE) in a '63 Falcon.
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"... main interest in knowing is: the car doesn't run very well and I'll probably want to upgrade the carburetor and distributor but don't feel like I know what to shop for."
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Early C1DE to C5DE have different distributor than later @ 1966 up engines. This limits distributor choice to the 'Early Small Drive" or aftermarket distrib etc. Nothing wrong with original points' in decent shape for low road mile cars .
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If original, the Carb will have rebuild kits available and different carb options are extensive. With simple adapters virtually any suitable size/
look carb will fit . - My Falcon 170 uses a Weber 2Bbl
progressive on a simple adapter, '61 Comet has Three glass bowl Holley 1904's
just for fun.

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obvious looks to need some storage related service like Valve stem seals often harden and crack with smoky exhaust looking worse than the damage.
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Almost any 200 (or 170) engine from 66 up through late 70's with high starter
should/could swap right in unless block was modified for the 5 Spd Bellhouse. The 200 kept the early small BH pattern right thru late 70's along with larger BH 'Toploader' 3.03 tranny pattern. The early small pattern was used for the 200 with C4 automatic until late 70's. The unknown BH/5Spd should swap to any later 200 if BH uses Early Small PAttern.
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Mixed careful Fab and
availables with VW front susp, Falcon rear with fab suspension?, Curious 5 Speed..
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BTW :
Heres another early 144 six powered sports car still seen on the track , used old Volvo 4 Spd last I knew...
When I was at the recent Lime Rock Historic Festival, Bob Melhado, who was the Chief Steward, said to me: “Let’s take a look at a Philson Falcon.” I agreed as I had never heard o…
stevemckelvie.wordpress.com
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have fun