Finally got some time to work more on the headers. I have them exiting straight back, so I can run them naturally aspirated a bit. Both to possibly install them sooner and two to make sure they are completely heat cycled and all the possible crap I missed cleaning them up out. With the 90º's on, they should clear the torque converter and transmission. I still have to work over the flange and do final stretching and welding on the ports.
The merge for the rear collector.
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"How I learned to stop worrying and love the OHC Pontiac L6"
The Silver Buick- '77 Skylark coupe w/455, SPX, MegaSquirt 3 & TKO-600 (Drag Week 2011, 2012 & 2015!)
1969 Firebird with a turbo'd Pontiac L6 controlled by a MegaSquirt 3 and backed with a microsquirt controlled 4L60e and 4.56 gears! (Drag Week 2018!)