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Allstar Base Plate Insert 1.400 4pk for 1/2in Spacer ALL26189 The "Governor" is a 1" thick, four-hole aluminum spacer with replaceable tapered inserts (sold separately) which can be quickly changed after carb is removed. Restricts air/fuel entry and...

Allstar Base Plate Insert 1.350 4pk for 1/2in Spacer ALL26188 The "Governor" is a 1" thick, four-hole aluminum spacer with replaceable tapered inserts (sold separately) which can be quickly changed after carb is removed. Restricts air/fuel entry and...

Allstar Base Plate Insert 1.300 4pk for 1/2in Spacer ALL26187 The "Governor" is a 1" thick, four-hole aluminum spacer with replaceable tapered inserts (sold separately) which can be quickly changed after carb is removed. Restricts air/fuel entry and...

Allstar Base Plate Insert 1.250 4pk for 1/2in Spacer ALL26186 The "Governor" is a 1" thick, four-hole aluminum spacer with replaceable tapered inserts (sold separately) which can be quickly changed after carb is removed. Restricts air/fuel entry and...

Allstar Base Plate Insert 1.200 4pk for 1/2in Spacer ALL26185 The "Governor" is a 1" thick, four-hole aluminum spacer with replaceable tapered inserts (sold separately) which can be quickly changed after carb is removed. Restricts air/fuel entry and...

Allstar Base Plate Insert 1.150 4pk for 1/2in Spacer ALL26184 The "Governor" is a 1" thick, four-hole aluminum spacer with replaceable tapered inserts (sold separately) which can be quickly changed after carb is removed. Restricts air/fuel entry and...

Allstar Adjustable Base Plate 1/2in ALL26180 The "Governor" is a 1/2" thick, four-hole aluminum spacer with replaceable tapered inserts (sold separately) which can be quickly changed after carb is removed. Restricts air/fuel entry and reduces power...

Allstar Base Plate Inserts 1.050 4pk for 1/2in Spacer ALL26179 The "Governor" is a 1" thick, four-hole aluminum spacer with replaceable tapered inserts (sold separately) which can be quickly changed after carb is removed. Restricts air/fuel entry and...

Allstar Valve Covers BBC Fab Aluminum w/ Holes ALL26177 TIG welded valve covers with a thick billet rail are available with or without breather holes for custom modification such as vacuum pump fittings. Recessed bolt pockets and tall design to clear...

Allstar Valve Covers SBC Fab Alum Centerbolt ALL26172 TIG welded covers are lightweight with a thick rail for gasket support. Covers without tubes are perfect for custom modification and use on dry sump systems. 1-3/8" breathers sold separately. ...

Allstar Valve Covers SBC Fab Aluminum w/Tubes ALL26171 TIG welded covers are lightweight with a thick rail for gasket support. Covers without tubes are perfect for custom modification and use on dry sump systems. 1-3/8" breathers sold separately. ...

Allstar Valve Covers SBC Fab Aluminum w/o Tubes ALL26170 TIG welded covers are lightweight with a thick rail for gasket support. Covers without tubes are perfect for custom modification and use on dry sump systems. 1-3/8" breathers sold separately. ...