i have a stock 04 hearitage with v&h long shots and s.e. air claener . i had the baffles out and a 195 main jet and a 48 pilot jet with a 1 washer under the needle . it wouldnt go over 90 mph not that i need to go that fast but if i have a problem at high speed i think i might have a problem at low speed . as advised i put the baffles back in and put a 190 main jet in and took out the washer under the needle and i still have the 48 pilot jet in and have the idol screw at 2 1/2 turns out . it popped threw the carb 2 times the other day in about 5 five min. time after warm up . when i go threw town about 35 mph it wants to surge but outside of town it runs good it went from 90 mph to 110 mph .so i dont know what the surge is i thought of a possable vacume leak but there really isnt that many vacume lines to it. i checked the intake nuts and they are all tight. oh yeah i live in illinois and it was 58 the day i took it out for a ride . i dont know what to check now . hope someone can help thanks.