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FE Power Forums => FE Technical Forum => Topic started by: barrys65cyclone on March 12, 2017, 08:51:57 PM

Title: Carb Spacer Intake Compatibility
Post by: barrys65cyclone on March 12, 2017, 08:51:57 PM

Any body know if 1970 428 Carb Spacer will seal on Edelbrock performer intake ? I need thin spacer with PCV connection to run Autolite 4100 on me 66 Mercury Monterey I Boss 302 Spacer will work but currently on B/O see link to spacer I am referring to.
https://www.npdlink.com/store/products/spacer_carburetor_to_intake_manifold_repro-150292-0.html

Thanks,
Barry

Title: Re: Carb Spacer Intake Compatibility
Post by: Lowrider on March 13, 2017, 09:05:34 AM

On the spacer shown where the pcv fitting is you see the back of the spacer has "hump" built into it. It's open underneath the spacer and has to seal to the manifold. On the OE manifold its machined to fit a spacer like that. If the Edelbrock has the same machining it will work. I tried that spacer on a yblock manifold (without that machining) and ended up with a giant vacuum leak. Hope that make sense.