1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 ALL MANIFOLD

Part Number: 3890

ALL  MANIFOLD - Part Number 3890
Manifold High flow T.P.I. System SB 1985-88 engines. Idle 5500 rpm. Designed for 1985-91 305/350 c.i.d. SB Chevys with Tuned Port Injection. With stock heads, the High-Flo System makes an 18-20 hp gain over stock. Requires no changes to stock computer. #3890/#3892 are stock replacement/street legal parts for 305/350 V8s with T.P.I.; 1985-88, #3891/#3893 are stock replacement/street legal parts for 305/350 V8s with T.P.I.; 1989-92. Not for LT1 Corvettes. Installation Notes: Recommended intake gasket for #3890 and #3891: GM #10159409. Port exit dimensions: 1.25 in x 1.98 in.
High Flow TPI System SB 1985-88 Engines 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991

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