Hey im geting ready for my build and will be running a he351vgt over an ht3b in hopes of 500+hp. i own a lathe and have access to a surface grinder. what cut dv would be suitable, itll be a DD and i dont want a ton of smoke. a puff just before the vgt does its magic and a haze once spooled no more. Can anyone give me numbers to cut to?

 

Anyone?