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    My L03 Plans & Some Questions

    This is some great info. Especially knowing you did that on a stock TBI and stock TBI intake. I have read a lot of your past posts and took notes on everything. You have done a lot of trial and error scenarios which has helped for the future when I do eventually switch to a larger displacement.
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    My L03 Plans & Some Questions

    Excellent Okay I will order one, my original pellet style is in terrible shape. When these heads were rebuilt the 1.85s were upsized to 1.94s which probably won't do any good. Likely will just hinder the flow due to how much shrouding they have now. Thank you for your response.
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    My L03 Plans & Some Questions

    I suppose i'll just move forward with the 1102 cam and re-use the stock intake for now and learn to tune with EBL Flash device. Not much going on in here with TBI systems it seems.
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    Full exhaust replacement. Hrs?

    I’d say 4 hours realistically. Maybe less if you have access to a lift and also hopefully your motor mounts are in good shape and not worn/collapsed.
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    My L03 Plans & Some Questions

    Thank you for the insight. If I add only the cam to the mods I already have then would an aftermarket intake be beneficial? I was looking at maybe the Holley Pro-Jection 300-49 or the Edelbrock 3704. Or would I be better off with carb intake and a TBI to carb adapter? Or no gains to be had there?
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    My L03 Plans & Some Questions

    Wanting to get some more power out of my L03 (305 tbi) using some stuff that I already have laying around my shop. Looking for some advice. Current setup on my 1990 C1500 SWB 3.42s & 700R4 -Delco EP241 Fuel Pump w/fresh filter -Mid Length 1-5/8" Headers With FlowTech Y-Pipe (nicer merge than...
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    Jegs Headers

    Did you have a chance to install them? How’s the factory paint holding up so far? Also did you put an o2 sensor only on the driver side one? Looking to install these same ones on my 1990. Thanks
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    Classic Procharger kits?

    I know this isn't the information you are looking for but I figured it might be of use. Around 15 years ago I have a buddy who had a 92 5.7 TBI truck. it was all stock except headers and the ProCharger kit. Automatic truck (2WD-Not sure about axle ratio) at the track he ran 14.6s pretty...
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    New Member From Kentucky (1990 RCSB)

    Thank you all for the welcome. I will start a build thread soon.
  10. D

    New Member From Kentucky (1990 RCSB)

    Just joined and wanted to say hello. I've had a few GMT400 trucks over the years including a 1990 454SS. I never really took the time to learn about this platform however. Instead I just drove them and had others do the work. I am now back in the game and this time I will be the majority of the...

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