Big Block or Small Block in my 70 Duster

pauly said

will the moroso valve covers clear the booster too or do I need to run manual brakes? reading alot about handling. Seems to be a good consensus to run 340 torsion bars with SS springs.............planning on tying the subframe together as well. What are everyone's thoughts on the 1.03" torsion bars? Do they make the ride too stiff?

Kinda leaning towards a small block for now - just because I got all the pieces parts already! Just need to figure out what to build. 340 or 360? LOL!

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just about any valve cover will fit with power brakes. the booster and master cyl sit a lot higher then on a manual brake car. you actually have more room with power brakes...

is this a street car? going to see much track time?

if its more of a street car i would go with at least 1" torsion bars, no they won't make it stiff. the just suspensions 1" are the ones i have experience with and they firm the car up but are in no way stiff and thats with a small block. i would also skip the ss springs and go with a set of 6 leafs springs from espo. you can get them in +1" or +2" if you don't like stock height.