wuts going on im wonderin does anyone have specs on the 71 396 like hp, comp ratio, ect. thanks

71 396 (402) LS3 was rated at 300hp with 8.5/1 comp.

wow so its like the ****ty 396?, how could i bump that up with minor upgrades, it has a different cam dont know the specs rite know i have it on a receipt, it already has headers, exhaust 2 1/2, dont know if its a stock weiand manifold but thats wuts onit and has a 570 holley carb two fuel inlets.

A good set of heads, a good cam and a 750 carb. should easily get you into the 400hp range.
I'm only running about 9:1 comp on my 439ci. It's got stock 049 heads, a fairly healthy cam, Holley single plane intake and 850DP carb. I'm pushing about 475hp

wut heads u think i should get or would heads would get me up to that hp. and for the comp wut would i have to do just get higher comp pistons, would that work with the same heads, and r my heads any good, this is a shtty year 396.

two choices
buy earlier closed chamber heads to bump up the compression if it is a running engine or
if it needs rebuilding, order domed pistons. The big problem is the very small factory cam in the 396 engines and later 402s. Add some compression like I mentioned and install a modern performance cam, and you'll have a lotta fun.....mid 13s to high 12s no issue and quicker if you can afford to lean on it harder....and spend more on the drivetrain components.

ok so try to get like 68 heads ur sayin ok so were can i get those from,can u point me in the direction, and yea its a great runnin motor and for suspension it has posi 12bolt and 4 sumthing gears i think the old onwer said 4.76 does that exsist, trans not sure wut it is it has a short lil tail though and carb i put a 570 to get it runnin and to try her out,has air shocks, and some nice lookin custom lookin traction bars that goes from the rear and connected to the frame