Join Date: Jul 2006
Location: Valrico Florida
Start with a simple test of your distributor mechanical advance. Be sure it's not hanging up. Late timing is usually the culpret on illuminated headers. I've experienced this on cars and motorcycles.
'77 930 turbo Garretson I/C 1 BAR spring, (2) '82 Triumph Bonneville Royal Wedding Edition
Past rides: '74 914 1.9 liter twin plugged track car, '83 928S, '87 924S, '75 911S w '78 ROW 3.0, '72 911T, '70 911T and various other insignificant domestic examples. Happiness is a grey tailpipe! Turbo lag......it's worth the wait!