ive got a weber carb with a 4 psi eletric pump (its a autozone cheap pump). i guess i need a different pump for the 4.3 ,what would be a good eletric pump for this set up? i ve also got a 2500 cfm eletric fan with 180 thermostat control.is that anuff for the 4.3 with its radiator. i dont have to wory about smog stuff were im at.