my 521 in a 74 F250 4x4

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scat rotating assembly from ADperformance
forged pistons and rods for about 10.5.1
scorpion roller rockers
comps hitech 3/8" pushrods
ported and polished C8ve heads/2.19/1.76 valves/polished combustion chambers/Victor match on intake from scotty (the Mad Porter)
950hp from Biggs performance
stealth intake
lunati cam 241/249@.050 584/600 lift
canton 8qt oil pan and hv pump
maddog fenderwell headers 2" primaries and 3.5" collectors
3" exhaust with dyno max bullets
2800 stall converter
recurved dizzy 12+(24)36 total
super cooler 4row radiator
4.10 gears with 38" super swampers
engine work and balancing and assembly of short block by Schurbon engines in Maqouketa,ia just got it running and been driving it around town to break in and whoa what a blast to drive,ready for first mud bog next sat

You have got to get some video!!!
Pictures just ain't gonna cut it!!

So how did mud bog go?

went good as could be expected i guess.first off i couldnt get transfer case into low side(dana 24) one shift rail slide all the way in the other wouldnt,so ended up running in high side.so first run i had a 5sec pass which wasnt to bad ,but good enough for 1st place after 1st round (10 other trucks in my class).2nd pass get to the line and theirs a hole at staging line and get set and light turns green,gave it the gas and moved about 20 feet and the intermediate shaft left go,took out the ujoints and also the ears are spreading apart on the yokes.so gonna upgrade the short shaft to 1350 ujoints and yokes to eliminate this.i guess i'll just move the the weak link somewhere else(lol).but came away with $125 for 1st and a unique plaque for a trophy.just happy to be able to drive it after sitting in my yard for almost a year since other motor went out last year.my son has it on video i'll try to upload soon as i can find the cord for video camera to puter lol