225 Porting

The exhaust l don't shorten as much, & just blend/bullet-nose the guide, to keep the heat transfer factor up. On a drag-only job, l'd take it out tho'. The port CA on the intake above is 1.65"sq., which is enough to pull that .060" over mill to 6K, 1.110"H x 1.49"W at that crucial point. Again, there's more there l'm sure, l think l could manage 1.85"sq & avoid "blowout" happy port walls.