Briggs 305 Spring Install Problem

Precision93

New member
I bought a set of Comp dual valve springs for my Briggs 305. Unfortunately, the exhaust side valve seat is raised approximately 1/2" and interferes with the inner spring. Does anyone know how to get around this problem? Do I need to remove the head and have the seat cut flush to match the intake side seat?

Thanks,
Dwight
 
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