Let’s hear a 340 story

I had a Valiant Charger in the early to mid seventies. My brother brought me back a 68 340 from the states with a 4 speed behind it. I put a set of TRW 13/1 pistons in it but had about half the dome shaved down to bring them back to about 11/1 or so. I put a 292/ 510 mopar performance cam in it and a set of modified hyd lifters in it. I was an 18 year old apprentice at the time so spent a week making a set of 4 into one headers for it and ran a 3.91 diff in it. I had a 6 pack set up on it with alloy manifold. Wow did that thing rev, would easily go to 7500 but drag racing would only rev it to about high sixes. With road racing slicks on it it would spin for about 20 feet then it was like you dropped the clutch again and ran a best of 13.5 in the qtr. I borrowed a set of 28 inch slicks of a mate and was going to use his 4.56 diff in it to see what it would run but it rained all week and was unable to get the diff out so I just ran the 3.91. well it ran a 13.1 but the gearing was all wrong. I used to take it down to the local street races and never got beaten . One night I ran a Holden Monaro 350 all worked over and beat him , then ran a 351 GT Falcon all worked over and beat him . there was a 850 Norton Comando with a weber on it that was trying to run the other cars but they would not run him as they thought a bike would be too quick so I ran him and beat him by more than I beat those cars. The bike just left me at the start but about half way down my horsepower kicked in and I flew past him for the win.The mopar made the chev and ford guys take notice that night.