Sounds like cold starts and short trips are the norm for the running of your truck. If so then you will be pretty much chasing your tail trying to improve the mpg. As AB said, a properly functioning and tuned feedback system is about as good as it gets.

 

ok i cant take it any longer i want my truck to move again iam heading to the scrap yard tommorrow to see if i can find what i need to get up and running till i can figure out that feed back carb stuff!!!!!!!!!!!!!!!!!!!

 

the SCV and feedback carb are well explained on the poney carb, classic in-lines and fordsix sites. Is that the questioning point? That's about pre '68 ford dizzy/carb feedback system. When ever I C "feedback" it reminds me of those pages...
(this post just popped up after 1 yr. abandonment so not sure my referral fits)

 

wow your referall fit i just got so excited last night about doing the swap that i made that post and then relized the age of it did not expect a response but wow way to be a over acheiver thanks a tone for the heads up

 

I C ur 'on' right now, can U tell me what wuz so helpful?

 

it was helpful the sites you listed in finding of info could i possibly ask you a few trans questions in a pm

 

"...a few trans questions in a pm..."
Sure, most of us take PM's. I may not B the best answer giver: I missed it wuz an '86 U got. The feedback I thought of - spark control valve and load-a-matic wrked together in the pre '68 'small six' world (1 I know a lill of) carb/dizzy. Yours is a 240/300 'big six', a lill different. Actually came w/the DSII, no?

AND of course transmissions R something even more different.

Yes, never saw any places with such detail as the 3 (except CB - but that's 4 my/other's Bronk).

 

What about oil pressure and engine temp?

just finnished the swap but the original connections are missing on wiring harness from a 1978 and cont tell which is temp or pressure

color code maybe?

 

Hi Rusty!
Welcome to the site AND forum! U R in an antique thread about a dizzy conversion. Some 1 may B along that can help (I doubt it as it's so old here) U but that would B more by chance than anything else. Sounds like you changed something & need a schematic, no? My stuff is too old to help on a newer rig.
Fordifacation is a site w/lots of ford wiring diagrams (if no 1 shows up here)...

 

The water temp and oil pressure wires are red/white and white/red respectively.

 

The YF was used in early engines. It was a pre emissions/economy carb. The YFA has vapor return. They are similar yet very different in appearence...

YF http://www.youtube.com/watch?v=SD4zs7VOp7Y

YFA http://www.youtube.com/watch?v=TF1rMhCtjME