Fuel pump

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Tikotiko

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« on: June 12, 2019, 08:39:34 PM »
I have a bbf 460 with a mild cam and a holley 3410. Im bogging out at just under 4000rpm. Ill be checking the timing and trying to learn about some carb tuning but how do i know if im getting enough fuel. What fuel pumps do you guys like. Ill be looking at mine tomorrow to see what i have


mash on it

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« Reply #1 on: June 12, 2019, 09:53:53 PM »
Add a fuel pressure gauge inline with the fuel line. 7 psi at wide open throttle, maybe 6 psi. Anything less you need more fuel pump. A ford truck pump should be plenty.

3410, sounds like that's a truck carb. Might need to be set-up for a jet boat application. Enough primary jet, secondary metering plate or jets, and the right vacuum secondary diaphragm spring.

That's all I got.

If Glenn ever shows up, and tells ya different, listen to Glenn

Dan'l
CJ/RR 212...under construction  "Pistol Annie"

Tikotiko

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« Reply #2 on: June 13, 2019, 02:08:10 PM »
Add a fuel pressure gauge inline with the fuel line. 7 psi at wide open throttle, maybe 6 psi. Anything less you need more fuel pump. A ford truck pump should be plenty.

3410, sounds like that's a truck carb. Might need to be set-up for a jet boat application. Enough primary jet, secondary metering plate or jets, and the right vacuum secondary diaphragm spring.

That's all I got.

If Glenn ever shows up, and tells ya different, listen to Glenn

Dan'l
Thank you

Tikotiko

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« Reply #3 on: June 14, 2019, 04:21:17 AM »
Add a fuel pressure gauge inline with the fuel line. 7 psi at wide open throttle, maybe 6 psi. Anything less you need more fuel pump. A ford truck pump should be plenty.

3410, sounds like that's a truck carb. Might need to be set-up for a jet boat application. Enough primary jet, secondary metering plate or jets, and the right vacuum secondary diaphragm spring.

That's all I got.

If Glenn ever shows up, and tells ya different, listen to Glenn

Dan'l
I gave you guys wrong info. Ita a 3310-4 Holley

mash on it

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« Reply #4 on: June 14, 2019, 11:18:16 AM »
I gave you guys wrong info. Ita a 3310-4 Holley

Same as I have.

72 jets up front
Lightest vacuum diaphragm spring.
Still running a stock numbered power valve.
Rear metering plate is stock also.
~500 hp 454.

Dan'l
CJ/RR 212...under construction  "Pistol Annie"

Tikotiko

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« Reply #5 on: June 16, 2019, 07:59:25 AM »
Same as I have.

72 jets up front
Lightest vacuum diaphragm spring.
Still running a stock numbered power valve.
Rear metering plate is stock also.
~500 hp 454.

Dan'l
I need to learn more about my carb. Every thing i look at i say to myself. I need to learn more.  :banghead:

 


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