Okay,What's the engine going in?What will be the cars intended use? What do you want the engine to do? Are you going to stay with the manual trans[that 3 speed is rather weak if you plan on any spirited driving],or are you going automatic? All these things need to be thought out before ordering parts.I'm not an expert,but if you stay with the stock stroke crank,get with Show Cars for the following: pistons,Ross 10-1 fordgings,6.135 rods,cam number 0949,or o950 with a 3.36 or 3.55 gear.As to your 379 heads,pocket port to the stock valve size for the 1147 or 817 head[2.06 intake,1.72 exhaust] and 2 1/2 center dump exhaust manifolds.The engine will run better with a small tube,tri-y design header,the stock 2 inch manifolds will be an unwanted cork in the exhaust.For the 409 crank combo,the head work as prescribed for the stock stroke engine,K-B Icon pistons,6.385 length aftermarket big block rods,and cam number o950 or 0951 with a deeper gear[3.55-4.11].With the stock stroke crank,the engine package outlined should put you in the 365-370 hp range,and about 410-420 ft.lbs of torque.With the 409 crank,the 0951 cam,you should be in the 400 plus hp.,435 ft.lb. range,both when used with small tube headers and a 2 1/2 inch free flowing exhaust.Once the questions are answered,we can hone in on the cam choices a little better.
