Quote:

you did not say what springs you tried to tailor the secondary opening rate too fast is bad!
http://www.summitracing.com/parts/hly-20-13

secondaries that open too fast cause a momentary lean condition which can cause issues like a bog and Pufft!





Dale Cubic had us restrict the secondaries from opening. We actually put accelerator pump springs in so the secondaries would not open. It did not change anything. We have tried several different springs and currently have the strongest spring in right now.