Electric Fuel Pumps...

Adger Smith · 11-16-2021, 02:13 AM

The Holley blue regulator has a very small area. If you figure the area of the jets in your carb you need a similar or larger area in the regulator to get adequate flow. Otherwise the bowls start emptying as you go down track.
The lower float level could alter the A/F ratio.
The area also applies to Needle and seats.
2ea. .130 dia. N/S will out flow a single blue Holley regulator..
In the past when I ran Holley Blue regulators they were modified for increased flow.
If your a non believer take a blue Holley regulator apart and do some measuring.
The bypass regulator helps reduce air bubbles in the fuel and gives the carb a solid slug of fuel to get in the bowl. Most carbs don't care for air in the fuel & show it in performance.
How much HP are you making?.. HP requires LBS per Hr of fuel. Design a system that provides the correct LBS. Per Hour of fuel.

11-16-2021, 02:13 AM	#19
Adger Smith VIP Member Join Date: Dec 2001 Location: Texarkana Ark/TX Posts: 2,446 Likes: 575 Liked 880 Times in 311 Posts	Re: Electric Fuel Pumps... The Holley blue regulator has a very small area. If you figure the area of the jets in your carb you need a similar or larger area in the regulator to get adequate flow. Otherwise the bowls start emptying as you go down track. The lower float level could alter the A/F ratio. The area also applies to Needle and seats. 2ea. .130 dia. N/S will out flow a single blue Holley regulator.. In the past when I ran Holley Blue regulators they were modified for increased flow. If your a non believer take a blue Holley regulator apart and do some measuring. The bypass regulator helps reduce air bubbles in the fuel and gives the carb a solid slug of fuel to get in the bowl. Most carbs don't care for air in the fuel & show it in performance. How much HP are you making?.. HP requires LBS per Hr of fuel. Design a system that provides the correct LBS. Per Hour of fuel. __________________ Adger Smith (Former SS)