Holley 4150 carb question
Thread Starter
Burning Brakes
Joined: Aug 2000
Posts: 1,211
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Holley 4150 carb question
I was wondering if there are any air cleaner base interference issues with any of the 4150 Holley carbs. I was looking specifically at the double pumper / mechanical secondary models in the 750 - 830 cfm range.
Some of the higher end units appear similar except the fuel bowls seem larger.
This concern would be for hood clearance issues on a big block using an LS-6 low-rise intake. I'm wanting to use the standard 3" drop base air cleaner that fits on my quadrajet (the heads & intake will have to change , I know).
Any experience with these carbs? I'm new to the Holley's and there seem to be a large selection, which is nice.
Regards, Mark :flag :chevy
Some of the higher end units appear similar except the fuel bowls seem larger.
This concern would be for hood clearance issues on a big block using an LS-6 low-rise intake. I'm wanting to use the standard 3" drop base air cleaner that fits on my quadrajet (the heads & intake will have to change , I know).
Any experience with these carbs? I'm new to the Holley's and there seem to be a large selection, which is nice.
Regards, Mark :flag :chevy
Thread Starter
Burning Brakes
Joined: Aug 2000
Posts: 1,211
Likes: 6
Re: Holley 4150 carb question (Fevre)
Fevre, thanks for the reply.
That's encouraging to be sure. It's just that it's hard to tell from looking at a picture in a catalog. Also, some of the "HP" models look much bigger than the more traditional Holley's.
Thanks again, Mark
That's encouraging to be sure. It's just that it's hard to tell from looking at a picture in a catalog. Also, some of the "HP" models look much bigger than the more traditional Holley's.
Thanks again, Mark
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From: Just because I'm paranoid doesn't mean people aren't out to get me...
St. Jude Donor '09
Re: Holley 4150 carb question (marky mark)
Here's the air cleaner base I'm using(pic courtesy Clink69). 
It the base used on L-88's, LT-1's, L-46's amoung other Chevy models. It fits fine with a Holley 3310 and I don't expect any problems running a 4150 with my BB. The base has reliefs to accomidate the dual fuel bowls since Holley carbs were used on early C3's.
It the base used on L-88's, LT-1's, L-46's amoung other Chevy models. It fits fine with a Holley 3310 and I don't expect any problems running a 4150 with my BB. The base has reliefs to accomidate the dual fuel bowls since Holley carbs were used on early C3's.
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Senior Member since 1492
Joined: Aug 2000
Posts: 87,971
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From: Just because I'm paranoid doesn't mean people aren't out to get me...
St. Jude Donor '09
Re: Holley 4150 carb question (marky mark)
Ok, the suspense was killing me. :D I went and sized up my 4150 HP Pro-Series 1000cfm Holley to the GM drop base unit. And guess what? Everything clears. BUT---I have mechanical secondaries and no choke.
You should be fine.
You should be fine.
Thread Starter
Burning Brakes
Joined: Aug 2000
Posts: 1,211
Likes: 6
Re: Holley 4150 carb question (1970 Stingray)
Thank you again!! That's great.
I was looking at that style although maybe not that large a cfm. I like the idea of going the route you are with the mech secondaries and no choke.
Some say that a vacuum secondary is the way to go on the street though. Then I hear others say that for the ultimate in performance potential you should use the double pumpers (mech. sec.).
After you get it installed and set-up please let us know how it works on your car.
Regards, Mark
regards, Mark
I was looking at that style although maybe not that large a cfm. I like the idea of going the route you are with the mech secondaries and no choke.
Some say that a vacuum secondary is the way to go on the street though. Then I hear others say that for the ultimate in performance potential you should use the double pumpers (mech. sec.).
After you get it installed and set-up please let us know how it works on your car.
Regards, Mark
regards, Mark
