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Old 09-24-2004, 01:35 PM   #1
crazypete
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Join Date: Sep 2002
Location: Boston
Posts: 592
Default Any gains from removing holley choke horn?

Good day folks,

I'm doing a sizeable rebuild/porting right now installing my gt-40p's and I stumbled across a few articles on carb porting. I was wondering:

I have not used the choke on my carb since I got the carb 2 years ago. The engine simply wont run if the choke is engaged at all. I know how to set idle/choke and I go back every year and try to put it back on and always recieve the same impression: the engine only runs if the electric choke is set to basically flip all the way open almost immediatley when the motor is started.

So what kind of gains would be had if one was to saw the choke horn right off the carb (carefully) so the top was flat. It seems like quite a restriction in terms of air flow and direction. I mean the air needs to smack into the side of the horn and then move up and then reverse direction to go down the carb throat....

If I should do this, should I leave the snorkels original at their original chorn horn length or hack them flat too?

Thanks!

Pete
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91 GT Carb conversion, holley 600 double pumper, edelbrock performer intake, FMS "C" drop springs, march 1000 underdrive pullies, crane 1.7 roller rockers, GT-40P headers, bassani x pipe, american thunder catback, FMS 4.56's, msd aL6, trunkmount battery, A/C eliminator kit, 3000 stall tci streetfighter, AOD with transgo kit, A+ servo, 300M hardened lockup shaft, kevlar bands and 28,000 gvw trans cooler, 3 core radiator, 300 lbs stripped with a full interior
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