Turbo 5.3 injectors upgrade
If your boosting at all, better go ahead and upgrade the factory injectors. 450rwhp is close to maxing out the factory ones on the cars I've seen. Seiman deka 80# are a good set that work well for all of us and don't break your bank account.
i think the stock pump is limited to about 500hp, so yes id get a bigger pump. im not sure how far stock lines and rails will take you though.
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Joined: Mar 2014
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From: Ohio
I have a pair of 340 lph pumps and deka 80s. Made more than 700 wheel on a stock 5.3 with a small cam. I'm only barely into the realm of needing that 2nd pump too.
You can get a Walbro 400-series pump and Deka 80s for less than $450 shipped to your door. Injectors are $320 or so and pump is less than $150. Together they're good for 800 at the wheels on a normal gas setup.
You can get a Walbro 400-series pump and Deka 80s for less than $450 shipped to your door. Injectors are $320 or so and pump is less than $150. Together they're good for 800 at the wheels on a normal gas setup.