First of All HI, Second, Heeeeeelllpppppp. Yanked the worn 305 out of the 85 for my daughter as a gift for graduation and installed a brand new (rebuilt) vortech 350. Had it machined and bored out and we painted and installed the motor. Put a Eldabrock performer intake, vortech heads, shaved, and headers. Rebuilt the Quadrajet and installed a electric fuel pump. I assisted with the help of my dad. Dual exhaust and new distributer with accell coil. Truck runs good at idle but under load or when you get to about 35 it bogs down. anything less than just a little accelator causes it to bog down under load...or hitting a hill.