My 505 practically fell together and has been trouble free for 4,000 + street miles and lots of dragstrip passes.
My combo is very mild and easy to live with and runs on the cheapest pump swill out there.
'63 Dodge 330 11.19 @ 121 mph Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs. 10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.