I am trying to install the 85mm MAF. I am running into problems fitting the high temp rubber bellows on. The throttle body opening is 3.25" and that would be connected to a 3.75" opening on the 85mm MAF. My question is do you think it would be to large of gap if I were to order a 4" - 3.5" bellow? That would be a 0.25" differnce. Do you think I can get it tight with the couplers?