I need to replace my intake gaskets and wanted to possibly replace the intake with a better one, running stock intake now. I have searched, but not really found which would be best for towing. The Edelbrock TBI intake is out, just too expensive. The Weiand 7525 has been mentioned on several places, but that one is impossible to find. Have seen several running either a Performer or Performer RPM, but there again they haven't really said if there was much difference from one to the other. Also, was wondering about the effects on engine cooling as most all carb. intakes don't have the crossover for coolant at the rear of heads. This also leads to having to re-plumb the heater hose. Any suggestions? See signature for current setup.