I have a little holley 600 single feed carb on my fox with 347 stroker and gt40p heads. I'm having issues I can't figure out. It runs good untill 1/2 throttle or more it don't sputter much or anything but it just like when I floor it it has less power than when it's near 3/4 throttle and I can smell a weird smell from exhaust when wot it smells kinda like a alchahol smell. When wot the car gets louder kinda but goes nowhere. And no it's not the clutch slipping lol. I don't know why it's faster at like 3/4 throttle than wot?