High Speed Sputter

Pittfann97

New Member
Nov 5, 2016
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To start off I'm running bbk shorties,4:10s, steeda cai, sct tuned for 91. Drives fine when under 70 mph. Getting on the throttle going up hills at 70 mph it will sputter real hard feels as if the car is struggling for fuel. On level surface it starts to sputter around 100 mph. Just cleaned the throttle body and swapped the plugs no codes are coming up. Ran royal purple fuel system cleaner thru about 2 tanks ago I changed the fuel filter after I went thru the first tank with the fuel system cleaner.
Any one have any suggestions on what to check next? I would assume pulling the fuel injectors would be a good check any suggestions on proper cleaning of them?
 
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