a corsa 1.4i 8v ? i mean max speed coz i hurd it was like 97 mph or something not a clue but i just bought a 4 branch manifold will this make much difference? should i drill my air box? should i have the heads shaved? thanks
was guna get a bigger engine but might as well keep this 1 till im 18 then change it. any good mod info will be much appriciated 