X-
ultra high performance camshaft. fair idle quality. big time torque and horsepower maker-up to 6200 RPM. 5-speed manual recommended.
*not legal for sale or use on pollution-controlled motor vechiles
*may require piston modification for piston-to-valve clearence. valve clearence should be checked.
B-
fair idle wuality. good low-end torque. significanttop-end horsepower about 4000 RPM. 5 speed manual transmission recommended.
*not legal for sale or use on pollution-controlled motor vechiles
E-
good idle quality. excellent low- and mid-range power. power throught 6000RPM. emmisions legal with 5 speed manual trans. works good with automatic transmissions. great for superchargers
-specs out of ford racing catalog-
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