[Jack21]

Bumpstick is a little mild, but shoud be OK for mostly street driving. Peak HP should be 5000 - 5500 RPM.

Distributor advance is coming in a little slow. Total of 34 - 38 all in by 2500 - 2600 RPM. Higher compression=less lead.

My gut, looking at your dyno curve, tells me you're using stock CR sidepipes, which are choking your engine. The little 1 1/4" pipe inside the muffler would make the HP peak fairly low, and stay flat across the powerband because the exhaust can't flow through the muffler any faster. Cut the mufflers out and install 2 1/2" or 3" core glasspacks, and the power curve should look more like what you expected.

Page Muffler in Arizona makes a 2 1/2" ID, 4" OD, 30" length that flows reasonably well, and is not overly loud. J.C. Whitney has a 3"ID, 4" OD, 30" length that flows a little better, but is a little louder. My "winter" muffler, also from Page, is 2 1/4" ID, and 36" long. They do cut the power some but are very mellow for street driving with the top and sidecurtains on.