Thanks for posting Alan, it's an honor
Well i like ever the "pure", my better performed engine was a C18XE 1.8 16V ecotec engine from my astra F GSi 16V. A lot of people say me to mount the C20LET calibra's turbo engine, but i like to be bit different with that untouched engine. I worked hard seem as you on the engine ( but with only 4 little pistons hehe) putting the exh valves at the see when you see the head from transverse ( brutal 12.6:1 compression ratio) and mounted mechanical pushers for the cams ( i have hydros but rally speciallist recommend me the mechanical pusher for the high revs and oil quality in hot, etc).
I changed everything, bearings, rod bearings, piston head rings.. and the car, the 3000km worked fine, was a beast. 980 kg and 177hp at 6800 (never putted remap, no one can touch that siemens simtec
and i destroy a rod last that 3000km for excesive detonations, that the OEM detonator sensor can regulate much more the º that they need to correct that)
In the other project, the Z22SE i do thinks better, and go with good ecu range, and the car was solt without problems, and working to 203hp than 147 stock, and beating/eating a astra coupe turbo 192bhp stock ( that provably the best day of my life in that coupe hahahah).
Well i speaking too much. I like to maintain the N/A pure and strong, I like as you Alan to go to outside roads and racetracks and drive hard. And i think a strong N/A is the better option for all racetracks, a turbocharged it's not enough better in corners than the N/A.
And, I think if i make a strong V6 seems like yours ( i don't really mind reach a greater engine than yours ) and at last i'm bored... i put a compressor changin cams for std again and putting a upgraded heat seal ( more mm to downsize comp. ratio?
Or it's no way back with the same engine?