Did I forget to put on deodorant?
Actually it's your breath.....J/K But looking for a response to your question is kinda like looking for that elusive snipe. Linkage is subjective and it seems no two setups work the same. You are asking for a manual on something that did not exist from the factory, so no real manual exists. Mulitple carb linkage on applications such as yours is nothing more than trial and error. The closest anyone can come to what you request is in Galaxie and Fairlane shop manuals that show factory 2 x 4 linkage on 427FEs. Will that work for you? I dunno. I suppose it will if the carbs are configured the same as the FE setup [backwards and uses a bell crank between the carbs with the exact linkage and throttle piviot points of each carbs.] But there lies the difference between your carbs and carbs designed for 2 x 4 application. The 427FE carbs have 2 different piviot points on the carb throttle lever as one is the primary carb, meaning any linkage movement will move that throttle first and as throttle movement continues will activate the second carb only after a given amout of primary throttle movement has been acomplished but the piviot points are configured to make both carbs reach WOT at the same time. [different opening ratio] Thats why the factory linkage has a slot to allow one carb's throttle to move without affecting the secondary carb until about, say 30deg of primary throttle movement. Clear as mud, right?Did I forget to put on deodorant?
you got assembled , just check for the pri shafts can close , delayed second carb pri. opening and both pri. are open at wot . if so your good to go .Hey fellas just got around to putting the induction system together on my Starliner. Upon doing so I came to the conclusion that in fact I had lost the instructions to the factory type linkage that I had received. The persons assisting me with this assembly do have dual quad experience, but not of this type. The linkage is from Carls Ford Parts, and the carbs (465cfm Holley vac secs) are from Price Motorsport Engineering (PME). These carbs are mounted backwards and have the 427 type bell crank assembly that opens the front primary slightly ahead of the rear, we’re good on the secondary operation. PME was nice enough to send me copies of the manual that shows proper adjustment and setting (Haynes? Chilton? Ford?) We have looked at pictures and have assembled the linkage, but are not sure we have it right adjustment wise. We would like it to operate as it was intended. Can anyone give some pointers or tell me which manual has this information (that would be great) so I can purchase it? Thank you in advance for your time.
Thank you I am putting my 1965 galaxie R code back together, This is great info.More for ya.
Don't worry about the power valves just yet. Idle vac divided by 2 is only a place to begin tuning, not the answer. When you do progressive "bottom-up" tuning from idle, then transition, then lean cruise, lean high-cruise (primary main jets), and finally power AFRs at throttle above that... then you are tuning the PV rating and PVCRs for enrichment when you need it. It's the last thing on the primary tuning list and fuels ±80% throttle to WOT range.I have to do the power valve change which requires the measuring of engine vacuum at Idle and then dividing by two ...