how much do you gain with 202s over 188S?

EL5DEMON340 said
always go with the 2.02 valve, plunge cut and blended even in a very mild 340/360, don't worry about velocity, nobody seems to worry about velocity when they bolt on a ld340 or rpm airgap.
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Better velocity with a RPM. Smaller ports, smooth runner bends, taller carb height.

LD340 has gasket sized ports, less carb height and sharper bends.