Shaker sitting too high? Motor mounts?

[chaps70rt]

I was reviewing the "Shaker too low" thread and wanted to share a similar or opposite problem.  I did a conversion to shaker with a flat hood on my 70 Challenger.  Now has a 440 4-bbl with the shaker base from Dave at Roseville. 

I suspect that my issue is caused by aftermarket motor mounts.   Has anyone experienced this issue and discovered a difference?   I used original mounts and isolation rubbers from Rick Ehrenberg of Mopar Muscle.

Thoughts or ideas?   I was thinking that I need to get the carb throat of the shaker base cut down about an inch, but don't want to do this if unnecessary.

[72cudamaan]

Are you sure you don't have the "B" air cleaner? They sit about an inch higher than the "RB" housing.

[4Cruizn]

What intake are you using? 

[anlauto]

You could have a 383 or 340 shaker base. Also the intake/carb set-up might be the culprit. Trimming what you have might be the best idea.

[brads70]

Are you sure you don't have the "B" air cleaner? They sit about an inch higher than the "RB" housing.

  http://www.nicksgarage.com/aircleaner.htm

[chaps70rt]

72Cudamaan ...... I was wondering this myself.   I did check with Dave at Roseville.   He believes I have the correct one.   If the other ones are shorter, perhaps I should simply swap for the 340 style .... or whatever is shorter??   Perhaps I will fire a PM to Dave again?

As for the intake.  It is a Edelbrock CH4B ...... I was told a couple of years ago that they would work with the shaker.   That is why I went this route.

Carb .... is a Holley.   I check with Performance Improvements and they told me that the Carter and the Holley I have are the exact same height. 

The plot thickens .....    Hate the thought of cutting it down and removing a 1" section to maintain folded lip at the carb.

Thanks guys ......  CHAPS

BRAD ..... thanks for the link to Nick's Garage ..... wow .... lots of variations.  Unbelievable .... 

[72cudamaan]

 With the "B" version, the carb horn sits flush on a table surface. With the "RB", the carb horn is off of the table surface thus making the
housing sit lower.

[chaps70rt]

I did not know that ...... I am going to pull mine off the car this weekend and check it.

thanks 72Cudamaan!!!

Chaps