Has 2 more bolt holes in the spacer and the ports are smaller. Insulates the upper intake for more power and better throttle response. 1.5" thick.
Intake spacer fits Edelbrock performer 1" 5.0 Ford fuel injection 302 331 347USA
Intake spacer fits Edelbrock performer 1/2" 5.0 Ford fuel injection 302 331 347
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