Mild 318 Carb chooice
03-07-2013, 07:15 AM
#1
New Member
Thread Starter
Mild 318 Carb chooice
I need suggestions for carb. I have on hand an older, much older, Holley 600 and also a not quite so old, maybe 5-6 years Edlebrock 750.
I am looking for opinions on using one of these, rebuilt of course, but also what would be the ultimate new carb for this setup?
1973 Plymouth Satellite Sebring. Will be mostly a weekend street car.
Engine specs:
Block Bored Honed and decked, went 40 over
New Performance Pistons with Moly rings,
9 to 1 compression
High volume oil pump
Camshaft:
Power range states 1600 - 5750
211/227 @ .050
442/460 lift
110 Lobe center
Matching Lifters and springs
Heads:
3 angle seats
1.94 / 1.50 Stainless valves
Stage 1 porting on the heads
110lb springs
Intake: Edlebrock Performer 2176
4-bbl Spread-Bore
Idle - 5500 rmp
Automatic transmission, not rebuilt yet so I can have it built to mach engine output.
Any input?
Thanx...ajk
I am looking for opinions on using one of these, rebuilt of course, but also what would be the ultimate new carb for this setup?
1973 Plymouth Satellite Sebring. Will be mostly a weekend street car.
Engine specs:
Block Bored Honed and decked, went 40 over
New Performance Pistons with Moly rings,
9 to 1 compression
High volume oil pump
Camshaft:
Power range states 1600 - 5750
211/227 @ .050
442/460 lift
110 Lobe center
Matching Lifters and springs
Heads:
3 angle seats
1.94 / 1.50 Stainless valves
Stage 1 porting on the heads
110lb springs
Intake: Edlebrock Performer 2176
4-bbl Spread-Bore
Idle - 5500 rmp
Automatic transmission, not rebuilt yet so I can have it built to mach engine output.
Any input?
Thanx...ajk
03-07-2013, 08:28 AM
#2
Mopar Lover
ak -
Oddly enough, those two carbs should both work. You're not running a lot of cam and with a small displacement, going higher than a Holley 600 vac secondary probably won't buy you much. Since a lot of the Carter carbs have smaller primaries, you might get away with a more flow - but you might get a bog when you jump on the secondaries.
I did run a Carter TQ (about 800 cfm) on my old 318, but it had a little stronger cam, HP intake and full (header) exhaust.
Assuming you are running a full dual exhaust, right?
Cool car, btw!!!
Archer
Oddly enough, those two carbs should both work. You're not running a lot of cam and with a small displacement, going higher than a Holley 600 vac secondary probably won't buy you much. Since a lot of the Carter carbs have smaller primaries, you might get away with a more flow - but you might get a bog when you jump on the secondaries.
I did run a Carter TQ (about 800 cfm) on my old 318, but it had a little stronger cam, HP intake and full (header) exhaust.
Assuming you are running a full dual exhaust, right?
Cool car, btw!!!
Archer
03-07-2013, 08:54 AM
#3
New Member
Thread Starter
ak -
Oddly enough, those two carbs should both work. You're not running a lot of cam and with a small displacement, going higher than a Holley 600 vac secondary probably won't buy you much. Since a lot of the Carter carbs have smaller primaries, you might get away with a more flow - but you might get a bog when you jump on the secondaries.
I did run a Carter TQ (about 800 cfm) on my old 318, but it had a little stronger cam, HP intake and full (header) exhaust.
Assuming you are running a full dual exhaust, right?
Cool car, btw!!!
Archer
Oddly enough, those two carbs should both work. You're not running a lot of cam and with a small displacement, going higher than a Holley 600 vac secondary probably won't buy you much. Since a lot of the Carter carbs have smaller primaries, you might get away with a more flow - but you might get a bog when you jump on the secondaries.
I did run a Carter TQ (about 800 cfm) on my old 318, but it had a little stronger cam, HP intake and full (header) exhaust.
Assuming you are running a full dual exhaust, right?
Cool car, btw!!!
Archer
Yes, I think my headers are 1 7/8" , I'll have to look at them a little closer, haven't looked at them since I started in June 2010.
I have heard that using a Quadrajet carb like this one, with the smaller primaries may be the way to go:
http://www.summitracing.com/parts/edl-9951/overview/
03-07-2013, 10:38 AM
#4
Mopar Lover
I would use the 600..there is nothing worse than being over carbed and having it fall on its face or stall because of flooding. I ran a 600 with more cam than that and never had a problem. with todays gas prices stick with the 600 its not like your racing or anything.
03-07-2013, 02:40 PM
#6
Get an Edelbrock 600.. 750 will work but it is too large. With a HV oil pump be careful it can suck the pan dry.. You need a 7 qt pan.. At one time they made a Quadrejet spread bore to replace the thermoquad.
Won't work with your manifold
Won't work with your manifold
Last edited by TVLynn; 03-07-2013 at 02:57 PM.
03-08-2013, 04:29 AM
#9
Mopar Lover
TV -
Depends. $20 spacer vs $150 manifold. And you get the benefit of a spacer (cooler fuel charge). More than one way to skin a cat, and it worked pretty well on my rig.
Archer
Depends. $20 spacer vs $150 manifold. And you get the benefit of a spacer (cooler fuel charge). More than one way to skin a cat, and it worked pretty well on my rig.
Archer
03-08-2013, 05:37 AM
#10
Mopar Lover
A 650 AVS works well in my comb i have the 360 heads 1.88 1.60 ported and a slightly larger cam and air gap manifold.
the avs is a slight spread bore not as extreme as the quad -jet
if they have tuning kits for the quad jet it would be a torky carb
My brother put one on his 440 it cam off a early 70's eldorado with the 502ci
that was the best working carb he ever ran on that monster he just put it on and it worked perfect no tuning.
the avs is a slight spread bore not as extreme as the quad -jet
if they have tuning kits for the quad jet it would be a torky carb
My brother put one on his 440 it cam off a early 70's eldorado with the 502ci
that was the best working carb he ever ran on that monster he just put it on and it worked perfect no tuning.
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