Bronco Forum - Full Size Ford Bronco Forum banner

1 - 5 of 5 Posts

·
PROPERTY U.S. GOVERNMENT
Joined
·
204 Posts
Discussion Starter #1
As almost all of you know now, I have a 600 Holley on my 302.

For low-end torque and better drivability, should I hook up the vacuum advance on my distributor to the carburetor on a ported or manifold source?
 

·
Registered
95 5.8L XLT, Hedman Shorties/MF SS Y & Muff, E4OD, Manual hubs, KYB Quads, 31x10.5x15's, 301K miles
Joined
·
749 Posts
With a manifold sore your idle will be higher and might need to be lowered that might mess up the throttle blade position in the bore and cause an idle or off idle issue. With ported it shouldn't affect anything. Now about better off idle throttle response you'll have to try it and see.
 

·
Premium Member
84 Bronco, 351w, c6, custom doubler, np208, 5.13’s, TTB44, 9”, locked f/r
Joined
·
843 Posts
I've always seen it screw with drivability when it’s hooked to a full manifold vacuum
 

·
Registered
Joined
·
599 Posts
I went ported on my 1406. Did a lot of reading, didn't like the idle behavior at full manifold vacuum, so I never even got it out of the driveway. I've not had a problem with ported vacuum and driveability.
 

·
PROPERTY U.S. GOVERNMENT
Joined
·
204 Posts
Discussion Starter #5
So I went ahead and switched it back to full manifold, I can’t tell much of a difference, albeit it does seem to rev up faster in park and in drive.
 
1 - 5 of 5 Posts
Top