So I put this car back together with a driveline like it left the factory with. 318/904/8.25 The motor is basically stock with Summit cam similar to the mopar purple cam. Added an Edelbrock 1406 on a Performer intake and dual exhaust using 340 exhaust manifolds. The trans is stock with a Transgo shift kit. The converter is the factory stock “ high stall “ converter used on the 74 Duster 360. The 8-1/4 rear now has a sure grip with 3.55 gears. I got the setup from Dr Diff. Rear tires are 245/60/15. The car is fun to drive and when you mash the gas she will spin the tires really good and chirp them when the trans hits 2nd gear. I just bought a set of 302 heads and I want to have them reworked with 1.88/1.60 valves. I have had a few guys tell me to ditch the 318 and put this 302 heads on a new 360 short block and not look back. I kinda like that the car is still 318 powered and the idea of keeping it sort of true to how it was built resonates well with me. I was thinking of calling Hughes Engines and asking for help with building a nice setup using those reworked 302 heads. I know that a different converter is probably going to be part of the upgrade as well. What would you do?