For the ITB's EFI solutions has a itb kit for the Ve. Or if you want to dyi M3 throttle ITB'S are 50mm. Anything smaller wont help with the VE. If u use the N1 cams you can rev pretty high but I never tried it. I always just got springs.
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95 240sx RB20 415whp
91 Nx2000 VVL yo
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