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0407htp Lumpy 11 Z

The Torquer 305 combustion chamber is 58cc, and the Manley valves use a larger 1.940 intake along with a 1.500 exhaust valve.
GM Small Block Build - The Mighty Mouse of Might

 The Torquer 305 combustion chamber is 58cc, and the Manley valves use a larger 1.940 intake along with a 1.500 exhaust valve.  View Related Article

 

 

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