One thing I should clarify is that I am not bashing the Victor heads--I am probably expecting too much too soon with the new combination. I probably have no more than a dozen passes down the track since the changes were made, and as Chris pointed out, most all were made in D.A. numbers above 8000'. I know that as I get more runs in, and do some tweaking here and there, I can get some more MPH out of it. That said, here are some more particulars:

Old combo:915 heads with very mild back-yard port job, Venolia domed pistons, Howards aluminum rods,MP .590 flat tappet cam, Crane 1.5 rockers,Torker manifold, Holley 850 DP carb, Dedenbear base-plate T-stop, 2" primary headers, 4:30 gears, PG trans w/1.76 low. Car weighs 1940, add me and 75 lbs ballast, race weight is about 2200.

Changes made:Edelbrock Victor heads, Hughes 1.6 rockers, Edelbrock Victor 2886 intake, the above mentioned Comp Cams cam, Dedenbear linkage-style T-stop. Have tried both 4:30 gears and 4:56s.