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I wanted so badly to use the LT5 TB with my ported LT2, but after talking to my tuner and thinking about it I decided to use my stock LT1 TB. If your N/A no real gains to be had. Save the money for some lowering springs or what not.
e85/TSP headers/ported lt2/roto fab netted me 470/500 on dyno. I did one pull due to leak from ported LT2 on neck. I know GPI did a short video of ported vs non ported lt2. We're going to do a couple pulls on both setups same car and see if there is anything to be gained whp wise.
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