just finished swapping heads to the vortec style heads,added a edlebrock vortec baseplate,added some edlebrock headers, and cussed enough to go to hell 3 times but the hp gain was well worth it. i just put the pontiac excitement back into driving my 89 formula 350. havent run any time slips yet but i can tell you she will pin you to the seat up to around 130 now and still pulling hard till 5500 rpms.it is awesome and i want to thank you guys for answering some of my questions along the way.