Milner62
Busy user
Hi Guys,
I need some advise/help..
I have a freshly restored matching numbers (NCRS TF) 66 427 (390) roadster. On initial cold fire up the choke comes on using the bimetallic strip technology. That all works fine as as you would imagine, it's rich until the choke turns of which it does. When warm, we adjusted the air/fuel and this was done by a friend with a lot of vintage Holley tuning experience.
The result is a car that drives beautifully! No flat spots, great throttle response and the HP you would expect from a 427.
So....the question. When I drive the car for 20 or so mins just around town, pretty normal stuff, when I return, I have a little soot on the rear fenders below the bumper. The car is a side pipe car. We think it still maybe running rich although it doesn't smell like it. Our thoughts are that this maybe normal and part of the 427 side pipe fun from 66 or maybe the jets are too big or something else? The carb is the right carb for the car!!
Any help would be greatly appreciated.
All the best
Dan
I need some advise/help..
I have a freshly restored matching numbers (NCRS TF) 66 427 (390) roadster. On initial cold fire up the choke comes on using the bimetallic strip technology. That all works fine as as you would imagine, it's rich until the choke turns of which it does. When warm, we adjusted the air/fuel and this was done by a friend with a lot of vintage Holley tuning experience.
The result is a car that drives beautifully! No flat spots, great throttle response and the HP you would expect from a 427.
So....the question. When I drive the car for 20 or so mins just around town, pretty normal stuff, when I return, I have a little soot on the rear fenders below the bumper. The car is a side pipe car. We think it still maybe running rich although it doesn't smell like it. Our thoughts are that this maybe normal and part of the 427 side pipe fun from 66 or maybe the jets are too big or something else? The carb is the right carb for the car!!
Any help would be greatly appreciated.
All the best
Dan