Getting ready to put twins on my '04.5. Using a 2nd Gen ATS manifold with an HTT 62/71/13 on top. I already know I'm gonna have to do some grinding on the front manifold flange to mount the 62. What are you guys doing with your pyro set ups? When you flip the manifol over it moves the pretapped port toward the front 3 cylinders and puts it on the bottom. Any clearance issues? I would prefer to have it in the back closer to the hottest cylinders but don't really want to drill into a new manifold. Did you guys just use the pretapped port or drill your own for more accurate readings? I'm not sure if the HTT manifold is the same way. Maybe theres a better manifold for this application. Thanks.

 

you have to drill and tap the manifold