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Team, I have a 1965 F100 w/a 240cid engine, (almost) all original. I'm considering replacing the single barrel carburetor with a Sniper EFI single barrel. I had several tabs break on the intake manifold a couple of years ago so I've replaced it with one that has slightly wider spacing for the carb mounting studs (I think this was true on all intakes after 1967ish). It's not a huge difference, maybe 3.0" v/s 2.75" or something like that. I was able to elongate the mounting slots on my Autolite 1100 so it fits but am not sure that I could do that on the Sniper to fit the wider stud spacing. Does anyone have experience or thoughts on this? Picture attached showing the Sniper base plate. It doesn't look like there's much room to elongate the holes. Thanks for any tips or thoughts!
So why would they only make it fit trucks that came with that carb and not the Carter YF or YFA carbs?
I think I would try calling someone to check the bolt spacing on it as marketing could have just used that and it dose not fit that carb but the later ones?
I too would be surprised if the Autolite carb has a different bolt spacing than the Carter.
FYI, there are two Carter bolt spacings - 2 11/16" (early intakes) and 2 15/16" (late). Some replacement carbs come with slotted holes to fit both manifold stud spacings.
They only sell the one for the Autolite 1100 spacing.
It seems like it would be a VERY easy marketing thing to make one with the 3" spacing for the YFA carb and capture an entirely second market, but alas.
I've seen it posted on their Facebook group where someone had this same question and Holley simply told them "It's for a 2.75" Autolite 1100 spacing".
Meaning, if you want to modify it to fit the YFA spacing, that's on you.
I don't think it'd be too difficult. Even if you took the holes all the way out and made them slots, it's not going anywhere once you get it torqued down.
AB, you beat me to it. I finally got someone from Holley on the phone and they confirmed what you said. It comes with the more narrow hole spacing, fitting only 1963-1967. I agree - I don't think it would be a huge deal to elongate the holes. I've done it twice on carbs without issue. Thanks for confirming.
I did a quick mockup and measured where 3.00" vs. 2.75" would put the holes. You should still have some meat on the end.
Seriously though, it seems a really big oversight on Holley's end. They should have just made the baseplate a tiny bit wider and put slotted holes. Done. Now it also fits Ford 240/300 I6 engines from 1967 - 1986.
AB, you beat me to it. I finally got someone from Holley on the phone and they confirmed what you said. It comes with the more narrow hole spacing, fitting only 1963-1967. I agree - I don't think it would be a huge deal to elongate the holes. I've done it twice on carbs without issue. Thanks for confirming.
Originally Posted by AbandonedBronco
I did a quick mockup and measured where 3.00" vs. 2.75" would put the holes. You should still have some meat on the end.
Seriously though, it seems a really big oversight on Holley's end. They should have just made the baseplate a tiny bit wider and put slotted holes. Done. Now it also fits Ford 240/300 I6 engines from 1967 - 1986.
That was a big over sight on Holley's part
Make it fit 4 years of motors or 9 years of motors?
I would like to know how many they sold fitting that 4 years? I see that them people most likely have factory restored cars / trucks or a something with a newer motor.
I think with the later 9 years they would be getting more that are still using the car or truck and would want EFI but thats me.
Then again cast the base with a slot to fit both and you now have 13 years covered.
Yep dropped the ball on that one
Dave ----
You missed a 1. It's 19 years! So 23 years total instead of 4.
Yeah, I agree. All those years of Ford trucks with many of them still on the road. Work trucks, field trucks, daily drivers, etc. Heck, even all the equipment the engine comes in is now a potential customer.
Definitely much more so than a could years of 60s trucks. That's a head scratcher for sure.
I think the 1100 sniper was primarily designed for Mustang/Falcons with the small 6. It was an added benefit that it also fit some the trucks. It's not like it was designed solely for the trucks alone
I reckon I was lucky. Mine bolted right on.
Now the throttle linkage was a bit more challenging!
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Would you believe I was using new math 
