[dykstra]

Originally Posted by napa68

Really nice Joe!

There is so much that can effect the "result" from an engine dyno then going to a chassis dyno. The correction factor on each is a big one as is the air the way you mentioned it. I'm a little surprised they did not adjust timing in the engine dyno session to begin with. On the bright side, it seems as though your fuel system is up to the task. That would certainly show up on the chassis dyno. You are also driving the fan and accessories in addition to the drivetrain.

My history with different combinations (engine dyno) were to start with 32 degrees (safe) just to make a pull and see where EGT's / AFR's are. Then start adjusting the carb and timing as needed. We'd always go in 2 degree increments to see how the engine responded. 36-38 seems to be the sweet spot. My only exception was the L88 in the HM Camaro where it liked 40. That L88 though had a camshaft and cylinder heads from the stone age

That's one of the many things that make that car so flipping cool!!