fuel line....how big?

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Apr 30, 2009 | 04:59 AM

gingerbreadman1977

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Drifting

Joined: Apr 2006

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From: gold coast queensland

fuel line....how big?

alright all this info is in my other thread but its a 383 , gm fastburn head, 750 demon ,crane 490 lift - 292 duration hydraulic cam. cam rev range will be 2600 to 6400 RPM . i'll be most likely running a holley mechanical pump.

will 3/8 fuel line cut it or should i go to 1/2 ?

Apr 30, 2009 | 06:24 AM

Gordonm

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From: Forked River NJ

I ran a very similar 383 combo with a 3/8 fuel line no problem. Mine was at 400 rwhp and ran to 7000 rpm. You should be fine with 3/8 line.

Apr 30, 2009 | 06:30 AM

Mad Vette

Pro

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From: Madison Wisconsin

My Holley fuel injection unit specifies a 3/8" line and it is rated up to 900CFM

Apr 30, 2009 | 06:41 AM

Ganey

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From: CORVETTE 77 385 C.I. TEXAS

You are fine w/ 3/8.

Apr 30, 2009 | 09:10 AM

shafrs3

Melting Slicks

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3/8" was used on the LS6 & ZL1.

Apr 30, 2009 | 11:00 AM

TimAT

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From: Gladstone MO

C3 of Year Finalist (appearance mods) 2019

3/8 line (and the correct choice of fuel pump) will support way more horsepower that you'll want to drive on the street.

Apr 30, 2009 | 11:43 AM

Solid LT1

Le Mans Master

Joined: Dec 2003

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From: Fremont CA

I have run low 12second 1/4 mile times on stock 3/8 fuel line but, used a Cater NASCAR fule pump to pull my fuel up to my Holley.

Apr 30, 2009 | 08:25 PM

C3 Stroker

Safety Car

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From: Youngstown Ohio

Mine runs high 10 sec. 1/4 mile times with the stock 3/8 line, and I use a 170 GPH mech. fuel pump feeding a Quick Fuel 950 (Holley) carb. Adequate fuel through 7000+ rpm.