367 vs 410 Engines Masters

Rpm intake, 750dp, Howard’s solid 254 260 at .050 with about .570 .575 lift with 1.6 rockers. Home ported speedmaster heads, Doug’s 1 5/8 headers with 2.5 exhaust. These parts were on both engines. 8 inch 4000 converter, 3.91 gears, low gear 904. 26 inch slicks. 408 has 9.8 comp. 340 had 10.2 comp. My combo is a better fit for the 408. I know that. 340 would have been better with 4.56 gears and more converter. Best et for the 340 was 12.84 at 106 mph. Best for 408 11.80 at 110 and I lifted right before the line.