Car has 3.73's, I shift around 5,600 as well when i'm getting it, and plan was either piece a vortech together/ afr 185s and a cam/ or port gt40s, and a cam and fix stuff on car
The second option is a whole lot cheaper and with 6-8 lb of boost you'd be fairly close to 400 whp w out having the heads ported.
However, the AFR + blower would be some kind of monster, over 400 whp. But it will cost significantly more. If you think you're gonna go w new heads then don't buy a cam right now. Buy the heads and then buy a cam that will "match" them. If you buy now you'll probably be buying twice. To make the get the most out of the 185's you'll need "a lot more cam" than what will be suitable for the gt40's.
What other things need to be fixed? Remember when your adding significant amounts of power there will be added "stress" everywhere else. Do you have the suspension that can hold 400 hp? 400 whp is quite a lot for a street car. For that matter a 94/95 that makes 300 whp and has any rear end steeper than the 2.73 is plenty quick on the street. You'll be able to hang with the new stuff as long as the road doesn't get too long.. How much power are you trying to make?
To sum it up. If you go the AFR route, you'll need a new intake manifold or at bare minimum have your stock lower ported, and new cam and all that goes with getting a new cam. N/A you'll be in the 300-340 range but that hp will come in at a higher rpm.
If you do a cam swap only (gt40) heads you'll gain like 10 hp but at least you'd have "new and improved" valvetrain. If you add the Vortech 6-8#'s to your current set up with the stock cam you'll probably be in the ballpark of 350 maybe more. If this is a street car that might see the dragstrip once or twice a year, what I would do is keep the gt40's, get a cam that's in the .500 lift and 281 duration with the appropriate springs, a new timing set, and add a Vortech kit. You'll still be shifting around 5,600 but you'll be making over 100 hp at 5,600 than you are now.
Don't Sext and Drive.
