I just looked on my instructions and it has 47 n2o jet and 53 fuel jet.I ran mine that way for about 8 years and never had any problems. I would pick up close to 8 tenths in the 1/8.

1.33 60 ft,6.21 at 110.59 in the 1/8, pump gas small block,2950lbs,drag radials,mufflers and driven to track ...