Reply to "what have i got?"

danieljonesMember

No. Redline is the maximum safe RPM. That can be set by
the valve train (valve springs, rockers, etc.) or the
rotating assembly (connecting rods, rod bolts, etc.).

I've not tested the Hall big bore system but others have and
report similar horsepower losses. The collector on the
Hall headers looks to be a restriction but you can cut and
weld on a different collector. We got all of HP loss back
by using Magnaflow straight through type mufflers. I'll
be testing 2.5" single inlet, dual 2.5" outlet versions of
those mufflers soon.

Dan Jones

8/25/1111:28 PM

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