Intake manifold max height
Thread Starter
6th Gear
Joined: Oct 2011
Posts: 6
Likes: 0
From: Wayne NJ
Intake manifold max height
I have a 69 coupe with original 350 hood. 388 stroker roller setup, but still original L46 intake and Jetted Q-Jet. I figure I will need 1" or more drop base filter and I want to go with single plane (Team G 7530 is only 4.09" to carb pad or shortest Vr. Junior) or high RPM dual plane like Weiand air strike and Holly 750. I don't want to modify or change hood. Does anybody know how tall I can get (carb pad height) before running into problems? On the same note, does anyone know the carb pad height on the original intake #3927184 is?
Last edited by tmc812; Oct 11, 2011 at 03:04 PM.
Drifting
Joined: Aug 2005
Posts: 1,682
Likes: 3
From: League City TX
With a Performer RPM or a Weiand "Air Strike" you will need to run a deep dropped air cleaner base and a 2" tall filter to clear the hood.
Per Holley's published data, the 7530 Team G is actually about 1/2" shorter than the RPM, so you could run a bit more filter height.
Per Holley's published data, the 7530 Team G is actually about 1/2" shorter than the RPM, so you could run a bit more filter height.
Last edited by DRIVESHAFT; Oct 11, 2011 at 03:03 PM.
Race Director
Joined: Apr 1999
Posts: 11,520
Likes: 13
From: CORVETTE 77 385 C.I. TEXAS
There is minimal clearance w/ the std. flat hood so the 7530 would be best single plane if it can be fitted. 2nd 2101 would work in a dual plane. The LT-1 hood provides minimum clearance for hi rise intakes.
There needs to be at least about 3/4" clearance over the Holley vent tubes.
There needs to be at least about 3/4" clearance over the Holley vent tubes.
Thread Starter
6th Gear
Joined: Oct 2011
Posts: 6
Likes: 0
From: Wayne NJ
I have been thinking that is probably the way to go. My hope is that it won't sacrifice a ton of torque down low compared to the dual plane. The car is a 4 speed so power band starting at 2800 shouldnt be too bad.
Race Director
Joined: Apr 1999
Posts: 11,520
Likes: 13
From: CORVETTE 77 385 C.I. TEXAS
FYI There is another intake about stock height that would work w/ either Q-J or Holley, the discontinued Weiand 7525 Street Ram single plane esp. if you like the Q-J.
I would go for the 7530 & Holley.
I would go for the 7530 & Holley.
Thread Starter
6th Gear
Joined: Oct 2011
Posts: 6
Likes: 0
From: Wayne NJ
I think the Weiand X-CELerator 7547-1 is the shortest of the single planes at 3.5" and the band is 1500 to 6500 like Edelbrock RPM, but single plane instead of dual. Anyone run one of these?
8th Gear
Joined: Sep 2004
Posts: 8
Likes: 1
Yes, i have the X-cellerator with a street avenger 670 and 1/2"alu 4 hole spacer on top of my 355 ci.
With the proform dropbase aircleaner botom and 3" fillter wil fit about of 1/4" clearence under my 69 hood.
raphael
With the proform dropbase aircleaner botom and 3" fillter wil fit about of 1/4" clearence under my 69 hood.
raphael
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
2nd Gear
Joined: Oct 2011
Posts: 2
Likes: 0
From: Canberra ACT
i have a l46 and currently waiting delivery of weiand 8125 manifold.i have a drop base air cleaner and a 650 holley dpumper with a std hood i reakon thats my limit for clearence. manifold measures 3.5'' at front.
Thread Starter
6th Gear
Joined: Oct 2011
Posts: 6
Likes: 0
From: Wayne NJ
8th Gear
Joined: Sep 2004
Posts: 8
Likes: 1
I use the x-cellerator with the voodoo 60104 cam from lunati.
About 2000 rpm, engine runns like a `bag of potato` but from 2000-6000 and mor, it runns very strong.
The x -cellerator is a little bit radical, dat`s way i use a 4 hole spacer.
In combination of a 4 speed trans. It works.
The answer of your question, yes i like the x-cellerator.
raphael
About 2000 rpm, engine runns like a `bag of potato` but from 2000-6000 and mor, it runns very strong.
The x -cellerator is a little bit radical, dat`s way i use a 4 hole spacer.
In combination of a 4 speed trans. It works.
The answer of your question, yes i like the x-cellerator.
raphael
Pro
Joined: Nov 2010
Posts: 602
Likes: 32
From: Old Bridge, NJ
I have a similar setup (383) in a 69 with stock small block hood and run a Victor Jr., 750 Holley Double Pumper (no choke or choke tower), and dropped air cleaner without problems. You're welcome to come by anc take a look this weekend. I'll PM you my info.
Thread Starter
6th Gear
Joined: Oct 2011
Posts: 6
Likes: 0
From: Wayne NJ
How much of a drop base did you have to run? Any other provisions? I appreciate the info - I'll try to touch base with you when I have an opportunity.
