wondering wat kind of hp and torque a stock 351 and a beefed up 351 would get and also wat would be the best way of beefin up the 351

 

What 351 are you asking this about ? Windsor, Modified or Cleveland ? They're all three very different animals.

 

probably the windsor

 

What year and application ? There's a huge gap in stock specs ranging from the high point of the 69 351W 4 bbl motor (290hp) in a Stang to the low point of those found in say, early 80's pickups of about 140 hp.

 

351W valve covers look like this: /===\ and use 6 bolts, approx 9.5" deck.

351M valve covers are like so: [===] and use 8 bolts. 10.297" deck height.

351C, same as M, but uses a smaller block with a 9.206" deck height.

351C, lots of power, expensive. 351M hopeless, make a 400 out of it. 351W, lots of power, lots of parts, lots of support.