Disclaimer: i may not no what im talking about![]()
well from owning a bigport i can tell you they suck! it has hks 265 cams, i'm using an apexi safc to run them and a custom 4-2-1 headers.
from what i read 4-1 headers are good for top end power at a sacrifice at low end and as bigports are terrible at low rpm i don't know how well thos headers would perform
but i don't know how it would go if you put 272 cams in
but you'll prob be better off with a standalone ecu if you run them as i think 265 cams is about the max you could go with standard ecu
as i said i could b wrong