my dad and i are building a 1.4 spi rally car, he is hunting down a set of 40's with inlet manifold etc. But what else can he do to get a fair bit of power out of the wee engine, like cam, 1300 head etc? Can i get bits from other nova engines (cam for example) to get more power?What cheap things would give me power gains? Also if we put the 1300 head and 40's would we need to put a different coil etc?
Thanks