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Old 02-27-2021, 09:44 PM
SD455DJ SD455DJ is offline
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Join Date: Aug 2009
Location: Grand Rapids, MI
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Quote:
Originally Posted by Norwood View Post
Dennis, I’ll let a expert like MATT give the real answer but I believe the difference is that the RA 4 pan is shaped for use with a Holley
Hey Craig! Yeah, the '71 wouldn't have the "Holley Bumps"....forgot about those that are '70 only for the stillborn LS1 RAIV that almost happened.

Dennis