Dynoed my 427so Cobra today.... interesting to say the least!

[DAVID GAGNARD]

Keith;

My MSD distributor has 22 degrees built in,so we set it at 8 degrees at idle and started there, that gave me a total of 30 degrees............my timing starts coming in at around 2250 prms and is all in by approx. 2800 rpms........after a 30 minute brake-in run with the timing set at 8 degrees we began making pulls....started at 5000rpms and increased each pull by 500 rpms till we got to 7000rpms......I lucked up and hit the carb jetting just right, so we never changed jets, a/f was right on from the get go, then we began making 6500 rpms pulls and retarded/advanced the timing by 2 degress each time, found my set-up liked a total of 32 degrees, then locked it down right there.........

Clay; I was amazed to see how little loss those GTs showed, I saw them do 3 of them back to back, all bone stock, they did 3 pulls each, and the results were the same, no fluke there either.........I would think the advertised 300hp should not vary more than a few hp from engine to engine.........I guess the new technology and driveline components are just that much better than the "old stuff" and I'm sure some of the new fluids are also way better than say 20 years ago..........still very impressive numbers any way you cut it.........

Had I not been there and seen it for myself, I know I would have a hard time believing some of those numbers..........not sure about the GTs, but I think all the Vettes come with all synthetic fluids, that's gotta help also..............

David