Rpm

[John Mason]

To those of you using a stock Turbo crank (cast, 3.400 stroke) and running in the 9 second range: can you post your upper RPM limits?
(I.E, shift points and trap RPM)
Thanks

 

[top gun]

My old combo stock block, crank, rods I was shifting @ 6400 and going thru the traps @ 6500 to 6600 on a 9.90 pass. I was using a 224/224 roller with a loose 8 inch converter.