Swifter, sorry I was not around to "chat" with you. You have seen my combination run. Many may not have. So....4" stroke 4.150 bore R-3 block. CP pistons, Eagle rods, roller, cam .770 lift, 278/284 T & D rockers/push rod oiling on Brodix Heads, Super Victor Intake, 1050 carb, MSD, crank trigger, 904 6200 stall converter, Dana 60. Car weight: 3025 w/driver. Best runs are 9.59 & 9.58 @ 138 & change. Consistent runs are in the 9.60's to 9.70's all summer long. [this is with race fuel 112 octane] and 34 degrees of timing. Also a vacuum system is used and the ring package also was selected for the vacuum pump equip engine. Axle ratio: 4.56 with 32X14X15 Mickey Thompson "stiff" side wall tire. 60's are in the low 1.30's to and occasional 1.29-1.28 but not too often. The average 1/8 mile is 6.05 [cool weather] to 6.12 [summer weather]@ 111 to 113 And that's all folks!