[dustytlr]

I have a 87 alante and its running horrable. i though it was just plugs and wires. so i replaced the cap, rotor, wires and plugs. i don't have a owners manuel. i get a bunch of code history and only one current B447 not sure what that is.
the care runs really rough like its missing almost. i can have the petal to the floor and it takes about three blocks to get to 35 mph.

any help?