[undy]

I have a 428 in my 65 LSC that has an overheating problem (has been discussed here elsewhere). In talking to the tech people with about 3 or 4 of the radiator/cooling system componant mfrs they all seem to hinge around the fact that I'm not turning my water pump fast enough at idle. I'm running the March 2 groove pulley set which allows the water pump to be 15% underdriven, for minimizing parasitic losses. They also all say Ebok's water pump flows less GPM at idle rpms, also for HP gains due to less parasitic losses. I'm just running an alternator, nothing else, so I guess I can run the single groove set up. I'm looking for the smallest diameter water pump pulley and the largest diameter crank pulley I can get. The tech guys seem to agree around 30% overdriven being the ticket. I don't think I can get to 30% but I should be able to get a little overdriven. Does anyone have ony oem suggestions or aftermarket. I would like billet or chrome but at this point good cooling is worth more than keeping the bling.