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'92 LT1 6spd '77 4spd
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Discussion Starter · #1 ·
Hey-
So wondering what kind of induction to use on my C3 resto-mod and what others have had good luck with. I'm gonna be
dropping in a 377 traditional small block and roller cam in the .550 lift range. The car has an L88 hood so there is some
extra clearance to use a taller-than-usual intake. The car has side mount headers so am leaning away from EFI unless there
is some alternate to using O2 sensors . I'm kicking around a 4x2 Weber type setup or maybe Edelbrock's RPM AirGap
dual quads, or even a low-rise tunnel ram suitible for street use. I'm hoping that, using that hood, It should be possible to make a decent cold air feed that's isolated from some engine heat . Any ideas would be much appreciated-

thanks,
bill
 

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1966 Coupe 454/538hp 4spd of course; 1984 Z51, built 11/83, Blue w/Black Leather factory override..
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11,718 Posts
My '55 SBC Street Racer ran dual Carter quads, which were a constant PITA.

My '62 Vette, 327, .30 over, Duntov 30-30 hydraulic cam, 10.5 TRW's, FI heads, ran a Holley 1050cfm, 3bbl., 13.2 E.T., able to bury the speedometer, was very sweet. Primaries got me 20mpg.. The lead foot secondary kicked in and the only street race I lost, by half a car length, was a Challenger, 440 6 Pack, Isky 1110B cam, headders, screwed in slicks.

The 7x National Champ Auto Cross, '70 LT-1, ZR1, SBC built, Guldstrand tuned suspension, ran side draft Webers. Awesome low end torque. But some work to keep balanced. You want/need a Helm's manual and a good learning curve.

My '66, 454/538rhp, runs a Holley Dominator on a GM 3885069 (L78/L88), which barely fits under the L88 hood.

All my other non-stock Vettes ran/run Holleys, usually 650-850cfm, double pumpers, mechanical secondaries. I'm old school. I love Holleys. They can be easily tuned to meet various conditions, street or racing.

If you're looking elsewhere, Demon's 850-cfm vacuum-secondary (or mechanical alternative), with a light-tension secondary spring and rejetting will increase the power.

NOTE: Mainfolds and carbs are best matched up with the operating range of the camshaft your running (refer to cam card).

C'ya
D
 

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1966 Coupe 454/538hp 4spd of course; 1984 Z51, built 11/83, Blue w/Black Leather factory override..
Joined
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11,718 Posts
Now you've gotten my interest.. LOL!! I should have blown up your avatar for a better picture.
What's your E.T. ?
 

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Registered
1966 Coupe 454/538hp 4spd of course; 1984 Z51, built 11/83, Blue w/Black Leather factory override..
Joined
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11,718 Posts

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Registered
1966 Coupe 454/538hp 4spd of course; 1984 Z51, built 11/83, Blue w/Black Leather factory override..
Joined
·
11,718 Posts
Oh.. and is the front tank a water injection or fuel coils for cooling? Or radiator overflow?
 

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Registered
1966 Coupe 454/538hp 4spd of course; 1984 Z51, built 11/83, Blue w/Black Leather factory override..
Joined
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11,718 Posts
A couple of edits here to clarify my shorthand. Sorry.
 

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Registered
1966 Coupe 454/538hp 4spd of course; 1984 Z51, built 11/83, Blue w/Black Leather factory override..
Joined
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11,718 Posts
The tank is not hooked up to anything now. But it has been there a long time.
It's a bit different from my late '60's early '70's dragstrip days.
Any clue as to it's function, if any,, wheelie bar..??? Hahahaha
Maybe just a beer keg for the after win party??? LOL!
 
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