Quote:
Originally Posted by INSIDIOUS '86
First off ditch the Holley spreadbore the whole lot of those should have never been made. Those things are a nightmare
Second. What's your cams duration?
A performer rpm intake seems like the better match so far
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Are the Holley Spreadbores really that bad? It seems like it runs the best on the truck so far, well for the most part. I also have a Street Avenger 670.
The duration at .050" is 234 244 on the cam.