Table: coxbike_engine
Columns: engine
exhaust_ports
bypass_ports
bypass_boosters
spi
tapered_grind
number_on_cyl

Question: Are there SPI on the number 7 cylinder?
SQL: SELECT "spi" FROM coxbike_engine WHERE "number_on_cyl" = '7'

Question: What is the minimum number of bypass ports listed?
SQL: SELECT MIN("bypass_ports") FROM coxbike_engine

Question: Is there a tapered grind on the Surestart engine?
SQL: SELECT "tapered_grind" FROM coxbike_engine WHERE "engine" = 'SureStart'

Question: How many bypass boosters are there on the engine with slit exhaust ports and SPI is yes?
SQL: SELECT "bypass_boosters" FROM coxbike_engine WHERE "spi" = 'Yes' AND "exhaust_ports" = 'Slit'