Hot off the presses. All I can do is show pictures, I trust Nick is doing the right things.
Before any work is done on the valve side of the intake port.
A rough cut.
A very cleaned up port compared to a rough cut port.
A closer picture of the intake port.
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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!)