454 Oval Port Dyno/Drag Test
I put together a 4.310 x 4.00 BBC 467 Cu In, 10.3 compression, 781 oval port heads, 1.88/2.190 valves, Performer RPM air gap intake, 4150 carb with a 1 inch open spacer. Hyd roller cam 238/248/.578/.608/110, 1.7 rocker ratio. My goal is a 9 sec pass in my Chevelle. Here's some pictures of the build.
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