Peeling the Onion
Thread Starter
Pro
Joined: Jul 2009
Posts: 503
Likes: 0
From: Gambrills Maryland
Peeling the Onion
I have a new to me 1968 with a 355 motor, 4 speed 4.11 rear, dart 2 heads, hooker side pipes, roller rockers, and a moderate cam(I dont know the specs but it idles with a moderate lope). I just got this car so I am playing the "why did the last owner do xxxx game. The car has MSD 6AL ignition box but an old Accel distributor model 30100T. The ditributor does not have any vaccum advance.....why would you want to eliminate that???
Also, what is a good disributor (MSD something?) that is pointless that would work good with the 6AL and the mechanical tach drive?
Also, what is a good disributor (MSD something?) that is pointless that would work good with the 6AL and the mechanical tach drive?
Le Mans Master
Joined: Dec 2003
Posts: 5,727
Likes: 39
From: Fremont CA
Eliminating the vacuum advance is probably costing you some fuel mileage nothing else. Mallory and MSD make great distributors but, expect to pay over $300 for one. The Chinese made HEI tach drive can be connected to your MSD, prices are cheap but, don't know much about quality on these.
Pro
Joined: Mar 2009
Posts: 703
Likes: 2
The previous owner probably has the timing locked out, which gives you a better throttle response off idle with a big cam.. It wil also help smooth out your idle some.. Big cams like alot of initial advance... He may have also removed the advance springs in the distributor too... I have done the same thing to my 68 but it does require an ignition cut-off switch so it will crank over when its warm.. For having a big cam, my car has incredable throttle response right off idle when I mash the pedal (no foot braking required off the line 
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Melting Slicks
Joined: Jul 2009
Posts: 3,264
Likes: 3
From: Vero Beach FL
This is for sale by a forum member might be worth looking at.
http://forums.corvetteforum.com/c3-p...stributor.html
http://forums.corvetteforum.com/c3-p...stributor.html
Last edited by Roco71; Jul 2, 2010 at 01:32 PM.
Le Mans Master
Joined: Nov 2008
Posts: 5,691
Likes: 12
From: columbus oh
I have a new to me 1968 with a 355 motor, 4 speed 4.11 rear, dart 2 heads, hooker side pipes, roller rockers, and a moderate cam(I dont know the specs but it idles with a moderate lope). I just got this car so I am playing the "why did the last owner do xxxx game. The car has MSD 6AL ignition box but an old Accel distributor model 30100T. The ditributor does not have any vaccum advance.....why would you want to eliminate that???
Also, what is a good disributor (MSD something?) that is pointless that would work good with the 6AL and the mechanical tach drive?
Also, what is a good disributor (MSD something?) that is pointless that would work good with the 6AL and the mechanical tach drive?
