I am in the process of reinstalling the A/C in my 1987 911 Cabrio. I'm having trouble fitting in the A/C bracket show in the parts catalogue as part number 17. If tightened down, it will push against the injector. The parts catalogue shows a spacer under each intake port. I don't think I have them installed. This would raise up the intake housing and (presumably) provide the clearance necessary. The engine was rebuilt 22 years ago. Is removing the spacers some sort of performance mod? Reduced runner length?
Cheers and thanks.
