on my old lt1 350, the throttle was dual 48 mm while the intake manifold was 52 MM openings. is the intake on our MM 62 mm, or do we need to dremmel it open from the 57mm?
2003 - black w/ dark charcoal 300a. polished full size spare, carpeted lid trunk organizer - 2w7z-54115a00-aa, black rear spoiler - 2w7z-5444210-aab, matte black door edge guards - yw7z-5420910-ba, all weather molded vinyl black floor mats - 1w7z-5413086-ha (front) & 1w4z-5413106-ca (rear), Gorilla spline drive chrome plated locking lug nuts, Kenwood kfc-6808c 6x8 3-way speakers in front & rear, Kenwood kfc-1705 6.75" subwoofer, Clarion Proaudio DXZ-835 CD receiver, Clarion Proaudio DCZ 6-disc CD changer, Clarion SIRCL Sirius satellite radio tuner, Superchips tuner, Borla cat back exhaust, SVO rear girdle (T/A performance) & stud kit, Dynotech MMC racing driveshaft, B&M 3 quart+ aluminum finned tranny pan.