Ready for a Boost! | Trask Performance Turbo, Part 2 Photo Gallery
Trask Performance Turbo Part 2
05. Before the throttle body was slipped back between the heads, Matt had to drill and tap the underside of the throttle body to thread in the brass fitting for the vacuum/blow-off-valve hose. A #21 drill bit and 10-32 tap were supplied with the kit.