Holley 4165 and adjust-a-jet?
January 24th, 2014, 08:32 PM
#1
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Location: Waco, TX
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Holley 4165 and adjust-a-jet?
Bunch of questions... Basically my Q-jet is great, except it's destroying me. The throttle plate is warped, somehow the top plate is getting crumbly (resulting in things like the accel pump mount breaking) and I've rebuild this tired old carb enough times that I think I'm done for now.
Looking on eBay, there are a lot of 4165's around for pretty cheap. Being new to this old car thing, all I know about Holley's is from watching Dad re-jet his a million times. Not wanting that much hassle on a daily driver in Utah (weather/altitude) I was kind of attracted to the idea of using adjust-a-jets on a 4165 and throwing an oxy. sensor into the exhaust, make it easy to tune without beating my head around jets all the time.
Cut to chase:
1. Any idea if the adjust-a-jet metering blocks for a 4160 will fit a 4165?
2. Is it even worth it to switch to a Holley or am I just being stupid?
3. As an alternative, could I just tear a TBI system off a 454 van and use that until I get another daily driver?
Just don't know where to start and looking for opinions. Too many options out there. Thanks guys.
Looking on eBay, there are a lot of 4165's around for pretty cheap. Being new to this old car thing, all I know about Holley's is from watching Dad re-jet his a million times. Not wanting that much hassle on a daily driver in Utah (weather/altitude) I was kind of attracted to the idea of using adjust-a-jets on a 4165 and throwing an oxy. sensor into the exhaust, make it easy to tune without beating my head around jets all the time.
Cut to chase:
1. Any idea if the adjust-a-jet metering blocks for a 4160 will fit a 4165?
2. Is it even worth it to switch to a Holley or am I just being stupid?
3. As an alternative, could I just tear a TBI system off a 454 van and use that until I get another daily driver?
Just don't know where to start and looking for opinions. Too many options out there. Thanks guys.
January 25th, 2014, 01:10 AM
#2
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Location: Grass Valley Ca
Posts: 973
#1 not a fan of Holley,if the airhorn is deteriorated to a point of crumbling than that carb is done.Imo i'd get another.Now using a 454 tbi now that's an idea i might use ,of course if the price was right .Pre 1991 gen 5 used a tbi adapder to speadbore intake.
January 25th, 2014, 03:36 AM
#3
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Join Date: Aug 2009
Location: Charleston, SC
Posts: 222
The idea of a TBI setup does intrigue me... hehehehe
After many battles with the Q-Jet I had on my Delta, I succumbed to a Holley 4160. It was free and needed a rebuild. Since I had been into my Q-Jet a dozen times, I figured it wouldn't hurt. My race car uses a 2BBL Holley, so I figured it would be a two-fold solution, I could learn about Holleys and build my Holley knowledge at the same time.
I hate to say it, and everyone's experience is unique to them, but I wish I had done it sooner. The Holley runs so much happier on the intake. It took a little while to adapt my learning curve to Holley, but for now, it purrs like a kitten. In 17 degree weather, I tap the gas twice, turn the key and she fires right up. In 95 degree weather I don't even have to tap the gas, bump the key and roooooar.
As for jetting... I don't really play around with the jets anymore. Once you find the sweet spot, you won't need to go in there again. I've been running my setup now for almost 2 years as a daily driver and have been happy. I'm averaging about 12MPG in city driving, which says a lot for a 78 Delta 88 350.
Everyone's experience may be different. At one time, I had both a 2001 Mustang Bullitt and a 2001 Mustang GT. The Bullitt has been a dream to own and work on. It's like it was made to come apart and go back together. In fact, I don't think I've ever thrown swear words at it while working on it. The GT, that was another story. Built exactly a month after the Bullitt, it was the spawn of Satan. It was a bear to work on, never wanted to go together right. Always needed some kind of attention. I cussed at it like those were the only words I knew.
After many battles with the Q-Jet I had on my Delta, I succumbed to a Holley 4160. It was free and needed a rebuild. Since I had been into my Q-Jet a dozen times, I figured it wouldn't hurt. My race car uses a 2BBL Holley, so I figured it would be a two-fold solution, I could learn about Holleys and build my Holley knowledge at the same time.
I hate to say it, and everyone's experience is unique to them, but I wish I had done it sooner. The Holley runs so much happier on the intake. It took a little while to adapt my learning curve to Holley, but for now, it purrs like a kitten. In 17 degree weather, I tap the gas twice, turn the key and she fires right up. In 95 degree weather I don't even have to tap the gas, bump the key and roooooar.
As for jetting... I don't really play around with the jets anymore. Once you find the sweet spot, you won't need to go in there again. I've been running my setup now for almost 2 years as a daily driver and have been happy. I'm averaging about 12MPG in city driving, which says a lot for a 78 Delta 88 350.
Everyone's experience may be different. At one time, I had both a 2001 Mustang Bullitt and a 2001 Mustang GT. The Bullitt has been a dream to own and work on. It's like it was made to come apart and go back together. In fact, I don't think I've ever thrown swear words at it while working on it. The GT, that was another story. Built exactly a month after the Bullitt, it was the spawn of Satan. It was a bear to work on, never wanted to go together right. Always needed some kind of attention. I cussed at it like those were the only words I knew.
January 25th, 2014, 09:47 AM
#4
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Join Date: Dec 2013
Location: Waco, TX
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Fdwheelman - Thanks, that makes sense. I guess I was looking at the 4165 just because it was spreadbore, but I hear a lot of good things about the 4160 (depending on who I talk to). One nicer thing about a holley is that everyone and their dog that I live near knows how to adjust them, with a Q-Jet I'm stuck ordering parts from Guam and digging around on the internet. (Don't get me wrong, when it works it works great, it's just the in-between that pisses me off)
Last edited by sqeeek; January 25th, 2014 at 09:50 AM.
January 25th, 2014, 09:14 PM
#6
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Never seen that before, looks pretty sweet. Thanks.
If I can get a Holley for cheap I might do that (on a tight &$* budget) but it almost might be worth it to pay the extra $ for something new rather than going for a Holley that needs a rebuild.
If I can get a Holley for cheap I might do that (on a tight &$* budget) but it almost might be worth it to pay the extra $ for something new rather than going for a Holley that needs a rebuild.
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