Cobra #3170 Sir have a older guy here in PA that has an OLD flow machine but seams to work great on the numbers.
My heads have had the following done
Spark plug hole moved .120" welded and helicoiled
Bottom of intake ports are filled
Top of intake ports are welded for more material and reshaped
The port job was CNCed to start.
The heads came with titanium valves but the wrong seats, not berillium ones
The jury is still out on titanium valves. Running a lighter valve spring will slow down the valve seat pounding.
Tubes in all the pushrod holes and can see them in the ports.
T&D shaft mounted setup. all machine work is done.
The last option is going to 5/16" or 8mm valves.
The heads are basicly done except for last line.
he next thing is crankshaft and connecting rods. Titanium is out. If I wanted to get crazy, honda 1.88 rods would be the way instead of 2.10 sbc rods.
Brent has is right with clearance in a shelby block. This doesn't mean I have giving up either on BME or GPR.
The last thing is looking into a piston sprayer setup like deisels.
Dry sump setup will be the oiling system with 100 psi spring. Got 15 years out of 2 rotating assemblies and no failures, the bearings are not damaged from high pressure flow. Stay with what works.
ERA sells an update for their rearend assemblies that better controls rearend from side movement and for and aft. Car needs a make over and paint repair, will add this in the winter.
Looking forward to seeing more autocross from you. Hope you had a nice Fathers day and breakfast in bed.
Rick