Vintage Mustang Forums banner

1 - 5 of 5 Posts
G

·
Guest
Joined
·
0 Posts
Discussion Starter #1
This is strange, when i gun it from a dead stop it accelerates smoothly with very little hesitation, but when i let off the gas, it stalls out unless I ease off the gas slowly. I checked for vacuum leaks, found none. Timing is set at 8 degrees initial advance, 30 degrees total. The carb in question is a holley 4160 600cfm vacuum secondary model. What are the possible causes of this?? Could it be a power valve problem?? Any help would be greatly appreciated, thanx.
 
G

·
Guest
Joined
·
0 Posts
Discussion Starter #3
your transition from main circuit to idle/low speed circuit is the problem. Check carefully the fuel level in the bowls and the idle mixture screws. I would guess your level is too low and your mixture is too lean. Back the screws out.
 
G

·
Guest
Joined
·
0 Posts
Discussion Starter #4
also, give your Pony at least 10 degrees initial.....should like it better
 
1 - 5 of 5 Posts
Top