Hello all,
I put an 85 Mustang GT OEM aluminum intake manifold with a Holley 4160 on my 74 Bronco with the stock EGR plate with a block off plate where the valve goes.. It's been on for a while but now I get between 10-14" vacuum. Did all the usual checks and can only see a slight increase in rpm if I spray carb cleaner around the choke side of the primaries. At this point I think it could be a leak through the primary throttle shaft, something with the EGR plate, intake gaskets or a cracked intake.
Where can I get a nice high quality plate to completely eliminate the OEM EGR plate? I need specific info so I can order one and try it out before I go the intake gaskets or carb shaft routes.
Thoughts?
Thanks,
Mike
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