borla or magnaflow mufflers blown 340 3" or 3½" ?

what size exhaust would be enough for a twinscrewblown 340 at about 14pounds of boost ? small solidroller 242/[email protected] .570/.576 lift ported edelbrock heads and 1 7/8" primary headers on ethanol



3" or 3½"



borla or magnaflow? i want straight thru but not sure if the packing in the magnaflows will survive the heat for very loong since this thing will be driven to the track and back and to local cruisenights alot

looking at either the 18"body magnflows or 16" body borla mufflers

i realize this wont be a quiet car by any means but trying to keep it at a level wich is tolerable

any sugestions ?



thanks