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I have an '89 GMC Sierra Sportside show truck w/ 350, A4. I purchased it new and has only 64,000 miles andhas been maintained gloriously. It has not ran in 3 years. I tried to start it this summer. I put an inline E-pump (10-21psi). It pumps fuel to TBI but injecters still not firing. I also installed a 670 cfm Holly TBI with the same results. Any ideas? THANKS for any ideas. ***Kevin
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