How much horsepower does a 1986 Chevy k5 blazer 350 ci have?

The horsepower of a 1986 Chevy K5 Blazer with a 350ci engine varied depending on the specific configuration and whether it was a TBI (Throttle Body Injection) or carburetor setup.

* Carburetor: These typically produced around 165-190 horsepower. The exact number fluctuated slightly year to year and based on the specific carburetor used.

* Throttle Body Injection (TBI): TBI versions generally offered slightly less horsepower, usually in the range of 160-170 horsepower.

Without knowing the exact engine code and options on the specific 1986 K5 Blazer, it's impossible to give a precise horsepower figure. The range above covers the most likely possibilities.