Quote:
Originally Posted by Ace23
Great info on the headers! I thought most Roush 427R's used a single plane intake. Did you change to a dual plane and if so which intake? If you thought the bottom end disappeared with the larger headers and dual plane then you can imagine how mine might feel with 2" and a single plane. My side pipes are currently 2-1/2" but I'm going to 3". We are very close to getting it buttoned back up for a test ride to see if the new fuel system solves the missing power issue.
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I bought my Roush through Dennis Olthoff's shop. Dennis recommended the dual plane intake. It was shipped from Roush that way. I believe they use an Edelbrock Performer. It is a stout motor that has turned 11:30s/125mph at the strip on Avon's and is still very steerable. I just rolled over 75,000 miles on the odometer. 40,000+ miles of that on the Roush with a rebuild about 10,000 miles ago.