Coles notes: 303,000 kms. Tired of engine after engine, so I did the right thing and found a 95 long block with about 20,000 kms untouched. Put a canton race pan (242t) on it. My cam from my 94 (drilled out dowel etc... for 95 distributor). 224/227, .542/.560 on a 112. Lightly ported heads (halfway to a stage one). Mac 1 5/8th headers, no cat and Flowmaster exhaust. 336 RWHP. 340 RWHP through cutout. 36 degrees total advance timing. AF still needs to be worked on and dives to 12.2 - 12.3 from 4500 RPM up to almost 6000. We couldn't get a proper tach signal, so I am assuming the TQ is 330 - 340 at the wheels 2200 RPM to almost 5000. It was a humid day and I have more tuning to do to lean out at higher RPM. I'm shooting for 345 through the exhaust. It appears that 340 RW is where the 1 5/8th MAC headers run out of steam and start to curb power. I like the plug access and the OTVC wires, so I'm not going to change headers. Thought I'd share.