Hi guys I need your help with my 23T. I have a 72 350 sbc and the P.O. put on the wrong heads. He was advised to use 415s for more torque. They have really raised my CR. and I'm told they are way too small, like 55ccs. I would like to replace them with some new ones that will give me torque rather than high horse power. The engine has a Summit cam # SUM-K00052 which is 216/216 and 454/454. installed by the P.O. The rpm range is 2000-5000. The intake is an Edelbrock Performer and it has a Holly 750 4bl. The bottom end is stock as far as I know. I would like to spend around $1000 or less. I thought about vortec heads but would have to replace the intake also, right? It has a TH350 and a Chrysler 489 posi rear end with 355 gears. Thanks, Bill