new engine or stroker kit?

My first real suggestion to you is SLOW DOWN!!! Bouncing 100 different direction will get you nowhere fast.

Agree, you're confusing simple minded joe's like me. but this post is simple:

sorry, i guess i should say, what else may i have to change if i go to the 4 inch crank, besdies new connecting rods and pistons...
You don't need new rods. Stock rods are fine (and not Chinese).

You'll need to clearance the block, you don't really 'need' anything else. You can rebuild your engine (after bore/hone optional sonic test) with the stroker kit but of course you'll need to work or replace the heads heads/intake/carb/cam to get the optimum performance out of the new stroke.

Did I spell 'optimum' right?