I own a 1994 Chevy Silverado ext cab 1500 350 Cuin TBI and I bought a SLR Performance chip for it. But the instructions that came with it are for an EFI version of my truck. It wants me to find the IAT sensor and splice the chip into the wires. Did I get scammed? And if I did is there any kind of ECU mod that has proven to work for my model truck, cause I'm not finding anything anywhere. BTW if it helps, I have a K@N FIPK fuel injection air intake and a dual magnaflow exuast on it. Has about 150k on it. Thanks for any help.