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Chevrolet 262-400 Small-Block V8
HIGH-FLO T.P.I. SYSTEM - BASEPLATE & RUNNERS (idle-5500 rpm)
Designed for 1985-91 305/350 c.i.d. S/B 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.
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| Applications |
Part # |
| High-Flo T.P.I. System (1985-88 engines) |
#3890 |
| High-Flo T.P.I. System (1989-92 engines) |
#3891 |
| High-Flo T.P.I. System (1985-88 with aftermarket heads, includes #3861) |
#3892 |
| High-Flo T.P.I. System (1989-92 with aftermarket heads, includes #3861) |
#3893 |
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 Installation Notes: Recommended intake gasket for #3890 and #3891: GM #10159409. Port exit
dimensions: 1.25" x 1.98". |
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Chevrolet 262-400 Small-Block V8
HIGH-FLO T.P.I. BASEPLATE
Baseplate retains factory fuel injection parts and emission equipment. Compatible with stock or aftermarket
runners. Can be ported to improve flow capacity. Requires no changes to the computer. Baseplate is stock
height. #3860 has been machined to clear centerbolt valve cover heads; #3861 is for all other heads.
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| Applications |
Part # |
| High-Flo Baseplate Only (1985-92 centerbolt engines) |
#3860 |
| High-Flo Baseplate Only (aftermarket and early model heads) |
#3861 |
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| Installation Notes: Recommended int. gasket for #3860: GM #10159409. Port exit dimensions: 1.25" x 1.98". |
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Chevrolet 262-400 Small-Block V8
HIGH-FLO T.P.I. VORTEC BASEPLATE
This intake allows any Corvette, Camaro, or Firebird owner to run the free flowing '96 and later GM cast iron Vortec heads, aluminum Fast Burn heads, or take advantage of the superior flow characteristics of our E-Tec
series heads while still using the factory or aftermarket TPI system. It's compatible with all current OEM and
aftermarket equipment, including the stock EGR valve, while still allowing the TPI Chevy to jump to the next
level in performance. Match with High-Flo T.P.I. Runners listed below.
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| Applications |
Part # |
| High-Flo T.P.I. Vortec Baseplate Only |
#3817 |
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| Installation Notes: Recommended intake gasket: Edelbrock #7235 or GM #89017465. |
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Chevrolet 262-400 Small-Block V8
HIGH-FLO T.P.I. RUNNERS
The High-Flo runners work with the High-Flo baseplate and either stock or ported stock baseplates. Match
with aftermarket heads and high-performance cams. Compatible with stock fittings and emissions related
features. No changes to the stock computer required. |
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| Applications |
Part # |
| High-Flo Runners Only (1985-88 engines) |
#3865 |
| High-Flo Runners Only (1989 and later engines) |
#3870 |
| Replacement Gasket Set (supplied with runners) |
#3866 |
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AMC
