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-   -   Holley's (Cutting the Air Horn) (https://www.offshoreonly.com/forums/general-q/221433-holleys-cutting-air-horn.html)

wtfo 12-18-2009 07:47 AM

I just milled mine off, but mainly because i have a really tight engine compartment on that set-up and it was clearly leaving too little room for air flow between the carb and top of the drop-base flame arrestor on the inside...

I don;t kniow that it is worth the hassle unless you have clearance problems.

you can buy a proform body without the airhorn for a little over a hundred bucks if you want to go that route.

ezstriper 12-18-2009 09:04 AM

you will not see anybody in a real race app running without it being done....now I did not like the idea of not diassembling the carb to do it in the link...but the H/P figures stated seem about what I remember seeing as well...free H/P !!!!!!

Clustergear 12-18-2009 03:26 PM

Cut mine last winter because I have low air cleaners and very little space between choke horn and air cleaners. Made a big differance was worth the time. Took carbs apart and cut with hack saw than finished off with Dremal tool. In the summit catalog you can get carb bodies already done . Think company is Proform or something sounds like that, around $120.00

getrdunn 12-18-2009 05:52 PM


Originally Posted by Clustergear (Post 3007953)
Cut mine last winter because I have low air cleaners and very little space between choke horn and air cleaners. Made a big differance was worth the time. Took carbs apart and cut with hack saw than finished off with Dremal tool. In the summit catalog you can get carb bodies already done . Think company is Proform or something sounds like that, around $120.00

I like tinkering over the winter anyway and will more than likely just do my own. The Proform ones do look nice. I don't have any clearance issues as I am in need of some scoops anyway after my new installs. Between the Dart intakes, Supersuckers and 10" x 5" flame arrestors I had no option but to start cutting. In my opinion the hors suit one purpose and one purpose only and that is to accomadate a choke. I'll be sure and post the before and after flow bench results (good or bad) along with some pics for what ever it's worth. Perhaps it will only satisfy me knowing there gone. LOL...

Young Performance 12-18-2009 08:18 PM

Get after it. Happy cutting:drink:

getrdunn 12-18-2009 08:51 PM


Originally Posted by Young Performance (Post 3008085)
Get after it. Happy cutting:drink:

There's a man who understands.

jeff1000man 12-18-2009 10:13 PM

I have to 750's that are cut. I aquired them that way. They performed flawlessly on the dyno, no leaning problems. Didn' test with a stock carb to compare though.

Ryan00TJ 12-18-2009 10:50 PM

My father machined mine off my old 750DP Holley. It will make a difference in response and add 25-40CFM vs stock.

getrdunn 12-18-2009 10:56 PM

cool


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