Pond
New member
I bought a leftover 03 Viper ER at the end of the winter and I want it to be all it can be without triple pipes and costing a lot of money. On the tech page it says to install a 53/43 helix and a green secondary spring. Should I do the thinner head gasket and reed spacers? Also should I change the main jets down a size? Any help would be appreciated. Thanks Al