about 2 weeks ago i put new tes header random tech cat and random tech cat back ..ok now is the problem the car will not go anywhere it is drivable but no where near the power i had before i thought it was the maf so i changed that and the burn off relay.....does anyone know what this could be ....i have know idea i have tryed everything but nothing has worked any input would be helpful thanks

 

What I would do is go over the steps you took during the install. What it sounds like to me is that "something" was left disconnected. I'd say check everything in those areas. Plugs, wires, O2, etc. Also check to see that nothing is grounding out. Other than that I can't think of anything else.

Hope that helps!

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'91 Z-28 5.7, SLP 1 3/4 headers, 4 inch Mufflex/Flowmaster cat back, gutted cats, Edelbrock intake, 8.5mm Jacob wires, MSD Blaster coil, S&W subframe setup, Jacob Pro Street Ignition, complete Kenwood system.