The one that's in my white car has three cracks. No daylight = no leak.

my 90+ has one crack...but again no light came through when i inspected it

over torque your manifold studs until they break, then back off a bit that's how i knew when mine were tight

use new gaskets?

ciao

New question for you guys. Its running well....except it is too rich. Could this be because of the cold start injector being stuck open? also if my timing was a tooth off would that affect comsumption as well? thanks!

are you reading richness off plugs or an A/F meter?

I'm reading richness off the fact that i can smell gas in the exhaust as well as using a tank in 200km...