I line what Cliff said, and agree with the last post;
Compression first, cam second.
I would get a better piston with less/smaller valve reliefs;
I would deck the block, but not worry about getting it zero decked - just freshen it up;
the stock 068 cam is a very good cam, and works good with the automatic;
I was going to suggest a 744, but that might not play well with the auto.
I would also look at what exhaust is there, or what might be going there before doing any modifications (i am a bit of a purist though)....
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1970 Formula 400
Carousel Red paint on Black standard interior
A no-engine, no-transmission, no-wheel option car.
Quite likely one of few '70 Muncie three speed Formula 400's left.
1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing)
2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs)
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