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built 2003 ss silverado questions


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Hi all. Just curious from some other ss owners. to get down to it i have a stock bottom end brand new i put katech cnc ported 243 heads with custom valve work ls7 lifters btr stage 4 ls2 cam  ls2 102 fast intake and nickwilliams 102 tb , texas speed header back 60lb injectors new fuel pump oil pump trans cooler 3500 stall built trans mighty mouse catch can ect ect... she put down 360/360 to the wheels...kind of disappointed would like to hear from others...i know the tune is everything but we have a reallly good turner here so...i guess some times you cant just throw stuff together? i am using ls2 vette parts as well instead of the truck stuff i.e bigger stage 4 cam/ported 243 heads

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