After Porting...Just Mains or Pilots as well?

[Stinger]

I just got done porting my cylinders (Jeff at FAST is finishing up the transfers) and I need to get some new jets. I know I'll need to go bigger on the mains and I assume I'll need to adjust the pilots as well. I'd like some confirmation as to whether that is a good assumption or not before ordering some though. Thanks.

 

Racelogice Stage III porting (plus a little more), stock carbs, fatties, etc...

Edited January 19, 2006 by Stinger

[BigRed350x]

I just got done porting my cylinders (Jeff and FAST is finishing up the transfers) and I need to get some new jets.  I know I'll need to go bigger on the mains and I assume I'll need to adjust the pilots as well.  I'd like some confirmation as to whether that is a good assumption or not before ordering some though.  Thanks.

 

Racelogice Stage III porting (plus a little more), stock carbs, fatties, etc...

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You would probably be best off to ask jeff about it since he is doing your port work.

[sredish]

Yes, what he said. Also, it's hard for ANYONE other than the builder to tell you where you'll be with portwork. Porting varies SOOOO much. You could be at a 320 main or a 400 main, no one knows. Best thing to do when you don't know, is try something on the rich side but in the middle area, like maybe a 350 or 360 and do a plug check. From there, you'll probably be able to tell what you need.

 

The pilot shouldn't change much, maybe a size. Best to fire it up and see how many kicks to cold start, warm start and how it idles. Basically, your tuning the pilot for idling and starting. The needle and main take care of everything else.