One of the best features of working with Burns is that when you buy a collector, you get free consulting for the tuned design from Burns using their X-Design computer program. X-Design takes into consideration, the bore, stroke, rod length, head flow, cam profile and compression ratio to model the correct primary length and diameters for optimal performance.
X-Design has always gotten us several hp over our best attempt to model a header every time we have tried to go head to head. Because of this, we have given up trying to outpower Burns suggestions and just follow their guidelines! Using X-design has always saved us dyno and cut and try time making buying a Burns collector money well spent.
Chris built the header from 0.063″ thick Burns 304 stainless. He reports that the certified 304 welds are better than lesser grades of 304. Here, Chris preps sections of tubing for welding by cleaning off any oxidation with red Scotchbrite.