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Got my camshaft today here's my numbers

Was that one of those older higher compression ratio motors. With 8.3 compression a good cam and headers. 6,000 safe RPM for an occasional or a frequent shift RPM

you're saying I should shift at 5,000. Max rpm So for the pipe Max program should I use like 4500 or 4800 for peak horsepower RPM

I hope to be under 3000 with roll cage... Streetcar yes but built for racing

521 close chamber with stock Pistons

That would probably be good that duration can take 8 in off my primaries

I guess that would be more of the advertised duration been a busy week

I just threw that number out there wasn't sure waiting for my cam grinder to send me my specs. Less duration shorter pipes. Higher RPMs shorter pipes

Yes ridiculously quick this thing will be... wondering what's the top RPMs for the 413, 440 so I can finish my primary header tube length

Wherever you point the steering wheel it will go. sticks to the road like it has super gorilla glue on the tires

413 8.3 compression 5 Speed manual trans 3.00 independent rear end 3000 lb Cam specs are an estimate The Max pipe software calls for 47.5 inch primary tubes for 5000 rpm peak horsepower. What is a good max shifting RPM for the 413 or 440.