1973 1/2t modifications to 2.5 ge60 webers need help
 

I have a 1973t CIS. I am changing to 2.5 with GE60 cams and weber 40 IDT 3C.
This for street use a couple times a month.
Oil bypass mod was done with a 4 rib pump
For the increase of cc I am changing the pistons to 86 with a compression of 9.8:1
Location: PA
Elevation 1250 ASL


Questions;

1. Heads intake and exhaust sizes recommended

2. Weber 40 IDT 3C jets and venturi recomended

a. Main jets
b. Idle jets
c. Emulsion tubes
d. Air correction jets
e. Venturi size
f. Anything else that need changed?