1999 4.3 astro wont re-fire

[Roadside8300]

After changing the intake gaskets wont re-fire..RE-checked base timing..

fuel pressure 68psi

Has enough spark to make you take a piss running for the john

pops thru intake while cranking

Why is there 2 timing marks on crank damper ?

rotor is pointed at the marker in dist housing

ANY ONE GOT ANY STRONG IDEAS..

 

 

[8.1HD/ALLISON]

Poping through the intake sounds like the distibutor is off. I would start by setting enine on tdc and recheck distributor.

[00Silverado4x4]

Moving topic to Vehicle Appearance, Care and Maintenance section. May get some more assistance.