In 1996 I built my first 496 from a 440 block, 4.15 crank, eagle H-beam rods,wiseco pistons with a 10.1 compression ratio and B&B lightweight wrist pins (155 grams)instead of about 235 for other pins. The cam was a hydralic 540 something lift Comp cam,Holley 850 DP, I had Mopar Performance stage 1 heads with a set of stamped steel rocker arms and a Carter high volume fuel pump. 6 quart Hemi oil pan,high volume MP oil pump, with 3 inch full exhaust,I drove it a bunch on the street and at the track it ran 11.7 @117 MPH on pump gas and never broke in 15 years of abuse, it also would rev like a 340. I would suggest on your motor Harland Sharp rockers and Indy ported SR-295 Heads they work great and flow good numbers, a light rotating assembly is the key, the guy that now owns the motor is still running it today, I went to the finals racing it at Mopars at the Strip and the semi finals at the Mopar Nationals it was even features in Car Craft in Mar 2003 I have also built 572 stroker motors this 496 is your best bang for the buck, the car ran great on super unleaded it is a red 69 Road Runner with a 727 2500 stall converter 354 gears in a Dana 60