Vortech 1990-1995 5.7L TBI Truck/SUV - Manual (Page 18)

P/N: 4GB020-010
©2002 Vortech Engineering, LLC
All Rights Reserved, Intl. Copr. Secured
22FEB02 V1.1
(LT. TRUCK (4GB V1.1))
11. AIR FILTER, INLET DUCT AND PLENUM
A. Modify the stock resonator chamber by cutting off
the end at the point where the radius stops.
B. Remove the internal baffle tube and deburr the
cut edge.
C. Fit the new end cover, with the air filter element
provided, over the end of the resonator chamber.
Secure the covered end by drilling two 3/32"
holes (transfer the location from the cover) and
fasten with the screws provided.
D. Secure the inlet tube bracket to the second bolt
from the front on the inlet manifold right side.
E. Assemble the inlet tube and inlet elbow and
connect to the supercharger inlet using the blue
sleeves and clamps provided.
F. Fasten the inlet tube to the bracket with another
clamp.
G. Connect the new air filter end cover to the inlet
tube with the 3-1/2" diameter flex tube and clamps.
H. Attach the crankcase vent from the left valve
cover to the fitting on the inlet tube.
NOTE: On 1993 model years and later, it will be
necessary to replace the resonator unit
with the earlier type prior to modifying. The
Chevrolet part number is 25097949.
10
Fig. 11-a
CUT OFF END AT
END OF RADIUS
STOCK RESONATOR
VORTECH FILTER AND
END COVER