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cobragene 02-18-2023 09:33 AM
Booster connection?
 
I have a 428 with an edel RPM manifold and have my brake booster connected in the port on #5 cylinder, that spark plug is always and little whiter than the rest of plugs, might I benefit from drilling and tapping the 1” carb spacer on the primary side for the booster? I have about 12” of vac at idle, canister with check valve, could use a little more brake boost.

bobcowan 02-18-2023 05:05 PM
Quote:
Originally Posted by cobragene (Post 1514833)
I have a 428 with an edel RPM manifold and have my brake booster connected in the port on #5 cylinder, that spark plug is always and little whiter than the rest of plugs, might I benefit from drilling and tapping the 1” carb spacer on the primary side for the booster?
Yes, you will. A single runner only has vacuum when the intake valve is open, during the intake stroke. But the plenum has vacuum all the time. You will get a stronger and more consistent vacuum there.

CHANMADD 02-21-2023 04:14 PM
I have my PCV and brake booster on the same connection at the back of the carb. The PCV is close so there is no oil in the line. Also a steel line with rubber connects.


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