250 main jet, 25 pilot, 3 1/2 slide needle position 3. 106 needle jet. After years of experience of 357 cams, in the real world I reckon you are better with a 356. Not that I am going to strip mine down to replace the cam. But mine does have an alloy head and 389 carb to complete the RGS pretense.
Straight through pipes? Hmm, not sure that will do the image with the general public much good.