by Seth G Fri Apr 14, 2017 10:32 pm
The oem carb would have been an Autolite 1100. They came in 3 or 4 venturi sizes, 1 for the 144, 1 for the 170, 1 for the 200 and the 1101 for the 250 in '69. You want the one for a 200. The holley 1940 was the oem 'replacement' carb for the 1100. The YF is a good carb, better than an 1100, and if it fits and is working, keep it. The one problem is the YF is a standard carb designed for a standard ignition system, the 1100 and the load-o-matic distributor were designed to work in tandem. The lom distributor only has a vacuum advance and it is tuned to the spark control valve on the 1100(and some 1940's). What distributor do you have? Someone may have swapped that to. Being a 65, you "should" be able to drop in a Duraspark II unit and ignition system. Between 68-71 or so the distributor on these engines would look the same but be a dual advance points type. That is good with the yf as well. Does your distributor have centrifugal advance? What is the ford # stamped into it? Is it C8 or later?Als, what is the # casting on the head on your engine? It will be aft of the carb CX etc or Dx and so on. Are you sure your engine is a 170? It takes some adapting to get a YF on a 170 with a pre '69 head, but being a '65 and having a cable throttle would making it slightly easier. Still some customizing of the carb mount would be involved.
It looks like your carb is off of a 1970 Mustang or Maverick 200 w/ automatic trans. I bet your head head is a C9 or later and I bet the distributor is to.
Last edited by Seth G on Fri Apr 14, 2017 10:53 pm; edited 1 time in total