Fueling & Injection - T1 cam ?

can I keep the stock fuel pump or not? thanks

r u talking about the one from mti/lunati? 221 558 ona 112? i have that one and no problems so far. i dont know why ud have to switch out the fuel pump for such a mild to med cam.

if its a 221 stock fp is fine but with a large wet shot you might want to consider a upgrade but its not a must. may benefit you on top end performance but not really noticeable yet.

yes,it is the 221/558, thanks guys