Carb Spacers?
Freshman User
Joined: Jan 2002
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From: USA
Carb Spacers?
I have read here and elsewhere that a two inch carb spacer helps to increase throttle response. My question is, would you use an open spacer or a 4 hole spacer, should it be aluminum or phenolic? And why?
I have a Holley street dominator intake and will be bolting a 600 holley with vacuum secondaries to it.
Thanks for your time.
Mike
I have a Holley street dominator intake and will be bolting a 600 holley with vacuum secondaries to it.
Thanks for your time.
Mike
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From: Virginia
Carb Spacers?
4 hole equals less plenum volume, more low end power.
open hole equals more plenum volume, more top end horsepower.
Phenolic insulates heat better from the carb-may hurt driveability in cold weather
Aluminum transfers heat better, won't help cure summertime heat problems.
You will have to experiment to find the best combination.
open hole equals more plenum volume, more top end horsepower.
Phenolic insulates heat better from the carb-may hurt driveability in cold weather
Aluminum transfers heat better, won't help cure summertime heat problems.
You will have to experiment to find the best combination.
Senior User
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Carb Spacers?
I havea 1" spacer on my 351C/street torker/750 vac sec holley... it is actually a squarebore-to-speadbore adaptor, with a single strip of metal in the middle, making 2 passages for the air/fuel mix (with a primary and a secondary using each passage). It seems to work well, as my motor has excellent throttle response even with the torker and 750 holley.
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From: USA
Carb Spacers?
Thanks for the info. I live in Texas, so I have more heat to deal with than cold and primiarily wanted the low end grunt, so it looks like a 4 hole phenolic will be my best bet.
Thanks again,
Mike
Thanks again,
Mike
Senior User
Joined: Mar 2001
Posts: 108
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Carb Spacers?
These spacers, are you using the EGR plate also or have you removed it. I have a 3" air cleaner on a holly on the EGR plate and I have no more room before the air cleaner hits the bottom of the cowling lip. Would a shorter element be alright?
Thanks
Chad
Thanks
Chad
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