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4.3l vortec intake manifold swap?


Ef8sirJunkie

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Im tired of the spider vein injection and its crappy gas millage. I was looking on Blazer forums and could only find the Marine intake manifold swap. Is there a cheaper alternative to swap it for an intake with 6 injectors? i will not start tearing it apart again to warm weather but would like to start finding parts.

 

Thanks

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Did tune up,water pump, feel pro headgaskets, feelpro intake manifold gaskets (the better ones), ngk plugs, autolight wires, cap rotor. no matter what i do it gets 17mpg. i've had this thing for years put maintenance in it just looking for better solutions. if i had an injector manifold i could get some bosch core injectors and lean my cruising and idle a/f out more and see hopefully 4-7mpg pick up.
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