6=8 and bore over?

Dan knows hit stuff and more than not I agree with him.

I had 3.73 and loved them from my Ford 8.8 swap (19 years old). What I have learned is rear gears and camshafts are subjective. some people can live with a big thumpy camshaft and some are good with 2.76 gears. I have come to love the 3.23 gears my self (10 years later).

I would spend the money on a 4 barrel setup (Offy and Holley 390), exhaust, and making the ignition system modern. There is a $1000 right there, but that is the limit I would spend on the 6 (from previous experience). Enjoy the car, do the suspension, and save up for some sort of crate engine swap setup.

I might get flamed for driving this point so hard, but I feel like the Duster platform is the heaviest which is a burden on the 6. Last, the guys that are having fun with the slant got into it years ago and stock piled parts. I bought my last slant (8 years ago) for $40. They want more like $400 now.