View Full Version : What is correct idle ramp for 351w in s&s

Mike Ingram
08-18-2012, 07:25 PM
What should be the proper idle be in neutral for a PCM 351. Adjusting carb. Thanks guys

08-18-2012, 07:27 PM
Mine sites around 800-900 at idle in neutral, in gear forward idle drops to around 6-700. Whether that's correct or not, I don't know. I'll check my manual when I get a minute.

08-18-2012, 07:33 PM
600 rpm idle in gear is spec, which is about 700-800 rpm in neutral.

Mike Ingram
08-18-2012, 07:55 PM
Thanks for the prompt feedback. Was at about 500 at idle and the oil pressure was still bouncing low when up to 800 at idle i get 25psi Oil pump is working good. Exhaust manifold is leaking a bit from a broken bolt.

08-18-2012, 08:02 PM
What has been posted is exactly what I would have said. 750-850 idle and above 700 in gear is normal. This will prevent any chatter from the dampner or stalling from going into gear.