itchy Posted November 16, 2009 Report Share Posted November 16, 2009 I have a 421 Cub. What recommendations for the pilot/main jet and what clip on the needle? Below are my specs. Thanks in advance! Elevation-1000ft 421CC CHEETAH CUB Shearer Small Bore In-Frame Noss Head w/18cc Domes 35 PWK’s Striker VForce 3 Reeds Trinity Stage IV Intake +4MM Crank +4 Timing Pingle I run Race Fuel Quote Link to comment Share on other sites More sharing options...
VegasJeff Posted November 16, 2009 Report Share Posted November 16, 2009 I have a 421 Cub. What recommendations for the pilot/main jet and what clip on the needle? Below are my specs. Thanks in advance! Elevation-1000ft 421CC CHEETAH CUB Shearer Small Bore In-Frame Noss Head w/18cc Domes 35 PWK’s Striker VForce 3 Reeds Trinity Stage IV Intake +4MM Crank +4 Timing Pingle I run Race Fuel I started with a 158 main 50 pilot and a cel needle on the middle clip,with the same mods you have,except I have 20cc domes. Jeff.. Quote Link to comment Share on other sites More sharing options...
captainhowdie Posted November 17, 2009 Report Share Posted November 17, 2009 Arent 35's a little small for a 421 cub? Quote Link to comment Share on other sites More sharing options...
itchy Posted November 17, 2009 Author Report Share Posted November 17, 2009 I started with a 158 main 50 pilot and a cel needle on the middle clip,with the same mods you have,except I have 20cc domes. Jeff.. Thanks VegasJeff! Anyone else? Quote Link to comment Share on other sites More sharing options...
Titan up Posted November 18, 2009 Report Share Posted November 18, 2009 We also have the same mods, excect im running 21cc domes. I was good at 158 main, 48 pilot and middle clip EEK needle. 300-500 ft about 60-85 degrees. Quote Link to comment Share on other sites More sharing options...
itchy Posted November 18, 2009 Author Report Share Posted November 18, 2009 Arent 35's a little small for a 421 cub? 35's work great on a 421 cub. You could also use 39's. Quote Link to comment Share on other sites More sharing options...
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