how about 330 at 5700?
zero deck, flat top piston of choice (i used KB167's), felpro 1008's, 10:1 (static), purple shaft P4452761 (.450"/.455" 268/272 110LSA 108cl), 302's with a 3 angle and pocket port/bowl blend, port matched to a performer RPM, 750 3310 on top, TTI long tubes.
and that's verified on a dyno with 13 second time slips to corroborate. could it make a squeak more with a bigger carb, a spacer and turning it another 800? maybe?