Lt-4 and 502 big block also comes with the same 48mm t.b. I doubt any of the cars in this post need a bigger one..
Check the new issue of GMHTP mag they do a Lt-1 intake and t.b. test on a 355 LT-1 end result was it was hard to be the stocker..
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2002 Z/28 = Firemutt Racing 370 w/ Cam, Trick Flow heads, TPIS 90mm Intake & 90mm T.B., Vigilante 3600 t.c., Michael's Transmissions Built 4L60E.
QTP Headers, Mufflex Stainless Y-pipe, Pypes Performance Exhaust, Moser 12-bolt w/ 33 spline axles,Truetrac & 3:73's., Spohn.
Cartek Tuned...
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