7K RPM's ... Oops! Rev Limiter ???

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Pour a bottle of Lucus oil treatment in it and twist it to 8000. They sound great after 7500.
Hyup, that's why I shift at 7000/7200 (yes cast crank, circa 1971, but rebalanced professionally).
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It may be on the down side of the power curve but so what; she's still spinning the tires . When I bang it into Second, she drops 1500rpm, right smack dab at peak power; and Bam! it keeps right on screaming. That sound is soooo addictive.
7000 in First-over (GVod) is ~65 mph, so shut down time; turn around and repeat. Then dump the passenger, before his bladder leaks all over my seat.
Second gear, should I chose to use it, is good to 82@7000
The Eighth-Mile is 93@6200 in Second over, or ~5750 in Third, by the math...... which is why the 230/237/110 cam, can stay. Otherwise I woulddapulled it cuz it is pretty hard on gas, lol......
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I'm telling you guys, you gotta try alloy heads@ 185 psi on 85E10; you'll never go back to 165, never mind the more typical 155 or less; never.
My engine is nothing special, and the heads are OOTB Eddies. The AirGap was new in 2000 and the 750DP is a factory original mid-seventies model, just upjetted a bit.
The Wallace calculator at my race-day weight(3457) and elevation(900); makes 93 to be 433 hp. I firmly believe that the cylinder pressure is a major factor, in achieving the speed, cz honestly the 230 cam is not IMO big enough by itself..

Eights are impressive for a street machine,at least IMO....
I wish you great success; @318willrun .