- Jan 24, 2016
- Reaction score
- UPSTATE NY
- My Car
- 1973 Mustang 351C-4V 4BBL 4 SPEED CONVERTIBLE White
I am really frustrated with this 351C run on. It was rebuilt by the PO so I dont have specifics whats in it. Does have a cam for sure. Has about 9"Vac at idle. I have read tons of posts on here about things to try and believe I have tried most all of them. I have leaned idle mixture out many times to no avail. I have gotten idle down super low like 500-600 rpm, just chugging. I have made idle screw speed to low to run then advanced timing (to 22, 20, 18, 14 10) etc to raise idle back up. Nothing has really helped much EXCEPT putting idle screw stupid low and then timing at like 22 to get about 700-800 rpm. THis helped the most but the car will ping when you accelerate. Just not good performance with distributor in this position. The DAMN thing runs too damn good and WONT STOP RUNNING! I am thinking of going to that idle cutoff solenoid, where 12V holds it on and when you kill car it will snap carb shut? Should I?