Quote:
Originally Posted by SD455DJ
Yes, Boss is right. I have measured the plenum depths on original RAIV and '71 HO intakes and they are cast at the same depth as the cast iron intakes. The '72 HO and service replacement HO intakes ('71 & '72) have the shallower floor by .125" or so. I haven't measured a service replacement RAIV intake yet as I don't have one of them.
Dennis
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Thanks for the clarification Dennis!
Quote:
Originally Posted by Tom Vaught
That is also my understanding but I have only owned 3 of the things and am not an expert on the different changes. I do know a Holley HSD will whip a 69 version by 3%.
Tom V.
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HA!
I have a nearly NOS HSD - I think it's a great intake...
it's "nearly NOS" because I ran it on my car for a brief while - the underside of my original hood shows the scarring as proof.
I still have hte original installation instructions tucked away somewhere!