Fine tuning issues

[Bauerdog]

I seem to have everything running close to perfect. Starts great, runs great, goes through the gears perfect. But after a good WOT pass my revs stay high for 2-3 seconds before lsn kicks in. From what I understand this is a sign of being too lean on the hsn. I've tried to richen it up hour at a time, but it just gets too rich and loose huge performance. It's not running hot at all, not even hitting 200. Tons of smoke. I feel I should be leaning more but the high rev thing has me a bit concerned about doing so. Any ideas?
Oh yea. OS30VG, byrons 20%, med-hot os#7 plug

 

[Jam Racing 1]

well if you are not above 200 degrees, then lean the hsn until you get some temp into the then tune it for better performance as needed....

 

[GAJ]

Are you starved for fuel?

Kinks in fuel line causing restrictions?
Is the ID of your fuel line large enough?
Is the fuel filter clean?

 

[Bauerdog]

Are you starved for fuel?

Kinks in fuel line causing restrictions?
Is the ID of your fuel line large enough?
Is the fuel filter clean?

No it runs fantastic, best it ever has. Fuel line is same ID I've always run, no kinks or tight spots. Just rpms hang high for a few seconds, after a good full throttle pass. Acting like a hsn lean, but running cold like its rich. The engine acts and runs like its tuned perfect, just trying to figure out some fine tuning stuff. Gunna throw a hot plug in to see how it reacts.