400ci build. Have a few questions.
Ok. For beginners I bought an 87 firebird drag car rolling body. Has roll cage, 410 Richmond gears, exc, exc. I have a moderately built th350 trans awaiting a motor. I found a good deal on craigslist. What I bought was a std 400 block. It came with a new 488/488 comp cam, Keith Black KB125 pistons, comp cams 7372 push rods, unknown name roller tip rockers, eagle rods(so I was told, they look stock to me and only numbers I can find don't bring anything up on google), Vector JR intake. The heads are cast iron with casting number 3988336. I googled it and got back many valve sizes. Anywhere from 1.74 to 2.02(I'll try to find out tomorrow with a micrometer). He said the heads where rebuilt, but they look like someone droped the valves and just cleaned them up. (Incase anyone was wondering, I payed 600 for everything.
Now for my question. I am looking to upgrade heads, and many people say go with vortecs, but they will need to be machined. I am not looking to spend 800 on a set of heads for my first drag car. I know horses cost money, just looking to make the most bang for my buck. If you recommend vortecs, what exactly will I need to do to them, whats castings should I stay away from if any, and how much am I looking at spending. Bottom end seems solid, and I want to keep the motor streetable in case I decide to put the motor and tranny in another body to make a strip/street machine, so will need it to be able to run on pump gas.
I know the subject "Double hump VS. vortecs" have been beat to death, but looking to find out what bests matches my setup.
Thanks in advance! Tim