i bought a set of stock carbs with caps and twist throttle out of a salvage yard looked great for 25 bucks ! .... got home and noticed that it looked like they were bored or honed out on the intake and filter sides but the slide was untouched so when you look through it there is a lip in the center where the slide sits ... is this ok ? has anyone done this or have pics of it ... and will this help or hender the engin e..... do i need to rejet ..any help will be welcomed guys