what size bov for twins

[sparepartsshee]

im kinda new to this but what size bov or waste gates should be used for twin 60's on a 2v. i think i have 38mm, i have a lot of lag with the five speed, and yes its a built motor, but can i go bigger like to 50mm or what,

 

[smashedheadcat]

For twin turbos, you'll want 2 38mm wastegates and probably a 50mm tial bov.