strange loud knock?

the engine runs great, my oil pressure is very good, it doesnt sound like a lifter, what can it be, it sounds like its in the center of the engine, or right under the valve cover, what can it be
 
i didnt touch it, but it sounds like its in that area, my oil pressure is good, stays at 40psi i dont think its rod knock or anything like that, its very loud in park
 
You need to back track , What did I do that could cause this , if it didn't do it before , then its something new keep that in mind when Diagnosing
 
it could be, thanks for the input everyone, any other sugestions on where to look or any common problems that exist, let me know ill check em out
 
If it's a fuel pump you probably can feel it if you put you hand on it. Other than that use an old broom handle and listen at different areas until you find the loudest point
 
Yeah you should see quite an improvement, Did you keep your time slips from before to compare?
 
yeah i still got them, last time i kept up with a lightning off the line before i got smoked, and i almost beat my buddy with the honda but my engine cant rev to 7000 or whatever they rev to
 
Well than that Honda may get a little surprise now :hmmm:

Yeah that is the same for my old 250 Mav almost pure stock it starts to flaten out at the top. As far as 7000 RPM, the right amout of torque can take care of that :nod:
 
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