I beg to differ its just an option, 200cc could be just enough to make
a difference with 8v instead of 16v.
Head shaved $60-80 expect to see 4% improvement per compression point.
maybe 105/111 will make 115/120hp.
Porting to remove short turn radius and casting slags $150-250
3 angle valve cut and re-seat $150
Mistu conrods $20-40 from wreckers get 8 to xray and machine $180
Camshaft $179USD
LPG rebate still 1750aud so you will get some money back if you
can get an injection manifold modified.
Carbs are too hard to pass engineering I would have thought.

Someone has a datsun 1000 sports sedan with a ca18de and it supposedly
has a distributor of the front camshaft from a Sigma can anyone confirm?