Solid flattappet vs. Solid roller
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09-08-2010, 05:37 PM
Join Date: Jul 2004
Location: At Speed
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537hp out of a streetabil 454 is good and I dont know if I would bother changing anything.
You need to check piston to valve clearance if you change the cam.
I would choose the 274 R if I was to pick one.
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