just installed 480cc's

[Lego]

well i just finished installing some yellow top 480cc's and im running stock ecu.

I can only pull up to 6 Psi before it just gets too rich and is slow....
its not like i didnt know this was going to happen but hey, i thought maby the ecu could adjust and i might be alright since 440cc guys kinda are.

Is there any tricks i can do to make it not so rich? like put an air hole after the maf? not a small hole but like 3/4 or 1 inch in size and run a hose around the maf so it can run leaner?

[BXSS]

You can get an adjustable FPR & lower Fuel pressure a little so the ECU can keep up with fueling.

OR

You can get a piggy back.

[Lego]

Well i left open the recirc. valve hole on the intake, i have an hks bov so didnt matter to keep the hole open

results: not a great idle but definatly not as rich driving, still sluggish but way better than without the hole.

overall: im switching back to pinks... i got drag racing to do in 10 days

im waiting for revtronix chip then ill put my 480's back in