Discuss 1966 Mustang 200ci auto 1 barrel to 2 barrel on AllFordMustangs.com, the place for Mustang enthusiasts.
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I'm a newbie here- I currently own a 66 coupe with a 200 ci six and an auto transmission. The carb is old and in need of a rebuild and thought why not upgrade to a two barrel. My local speed shop recommended a Holley 0-7488 with an adapter plate and electric choke. Anyone done this conversion and have an opinion on this set up? Any linkage problems? Fuel inlet? Drivability? Hood clearance? Any alternatives to this set up that work well? Any comments will be appreciated.- johno66
I put a Offy 3 carb intake on mine: it was very cool but required a lot of machine work. It was a hassle but since the car wasn't a daily driver it was worth the effort. It placed a carb directly over a pair of intake ports. I used a prgressive linkage and a choke on the center carb only. Ran great in the summer at WOT. Ran very poorly in the winter.
Biggest problem with the 200-6 IMO is the tiny integral intake. Additionally cylinders 1 and 6 are a long way from the carb.
I agree that the Ford Six Performance site has some great info. A word of warning though: you may find your project grow into something crazy. I started looking at that site looking for a few simple things to do and now I'm in the process of planning out an upgrade to a aluminum cylinder head, more aggressive cam and some other components.
You shouldn't have any clearance issues. The six sits low enough in the bay that you'll have plenty of room.
Don't use an adapter plate. All the companies I found reviews for said the adapters leaked alot. Save up, get the head from a 250 straight six, then go to classicinlines.com . They make special intake manifolds that are safer than a leaky adapter plate. I am saving up to get my car redone using one of their kits.
To put a Ford or Holley 2 bbl carb on the six you need to mill for a small rochester 2 bbl to Ford or Holley adapter. It is a flat adapter and when the manifold log is milled flat to mount the adapter andf then the hole opened up for the 2bbl carb it adds a lot of performance.
I hope the picture works....
1966 Coupe 351W Top Loader rebuilt, rewired, modified for slalom and hill climb No racing - just a fun car built by and for me. Project in process
I used a Carter YF from a 79 Granada on my 65 coupe with 200. The carb came from a 250 engine and was considerably larger. Still a 1-barrel. I had to cone shape my carb spacer, $20 at wrecking yard, $20 for a carb kit and new float. $40 bucks and it has a lot more power. Just a cheaper upgrade option.
welcome to the site and as stated there are a lot of things that can be done to the 6 and be sure to check out fordsix.com.
Dare to be DIFFERENT. Stay INLINE
1966 Mustang Vert., 200 CID I6, Autolite 1100, Pertronix Ignitor I, Candy Apple Red, black interior, black power top with glass rear window, C4 Auto Trans, Scarebird 4 lug front disc brake conversion, dual master cylinder, LED dash, park and tail lights.
1976 Cobra II, 302 CID, C4 auto trans. Blackjack headers, white with blue stripe and blue interior. Restoration process.