Just done mildly professionally ported (GTP in Houston) medium riser heads with 2.19 hollow Ford intakes and sodium filled exhausts. Springs set up for flat tappet cam, but can be changed to your perference ( and tab).
A forum community dedicated to Factory Five owners and enthusiasts. Come join the discussion about performance, racing, conversions, modifications, troubleshooting and drivetrain. We discuss MK4, GTM, 818, Type 65 coupe, roadsters, and more!