i say congrats on the #,s, its hard to get high hp #,s out of a 1st gen with an auto on a REALISTIC dyno. 300 hp at wheels is more power than many realize. these trucks only made 135 rwhp stock on a good day. however i definately think your trans. is leaving alot on the table. a good i/c helps too. at a dyno day i went too in utah a cool 1st gen with almost identical mods and a ats built trans an t/c put down 270 hp, my truck w/ 5spd and descent clutch put down 364. people throw around 400hp # alot in 1st gen discussion but it takes alot of high rpm fuel to get it, i think you need a quik spooling turbo or twins to light quik and take advantage of ve pumps low rpm fueling. also i think there are alot of " generous" dyno,s out there whene i see trucks with simular mods make 400 hp i kind of wonder. hopefully you can get more power too the ground. i enjoyed you posts on this event. any numbers from other trucks?