I have a 72 chev p-u. it has a 355 with a very healthy solid lifter cam, dont know the specs, also has headers, hei , high-rise dual plane and 194 camel hump heads. i need gears and conv for this cam. my question is how much gear? it has a 700 r4. it is stree driven. i dont like loose converters. i want just enough to make the cam happy. and make the combo driveable and live on the street. would a 410 with the over drive be as good as it sounds. seems like a low gear and overdrive, would be having your cake, and eating it too. Thanks.