Just screw the heads and cam until you get more money. Spend what you have now on headers y pipe, cat-back, and cowl hood or some other air induction setup than that.

If you do the cam and heads without the exhaust you will have a large restriction that wiill make you see little gains.

From what I have read on this site the main restriction are exhaust mainfolds, exhaust itself, cam, air induction, and gears.

 

well i have a hooker catback right now and im about to get hedman shorties and a custom y-pipe and no cat. ill get a 2 or 3 inch tall 14" k&n air cleaner (and the hood i guess since it wont fit)

i think im going to get the gears first though, they are more expensive

 

what 14" air cleaner will clear a stock hood? i have an L98 w/ edelbrock performer and a holley carb

 

(ME Leigh- you said I have to admit that $359 bucks for a set of heads is a pretty good deal. That is if your not looking for a performance increase, just a new replacement head.)



ME Leigh just because you think that upgrading valve springs is the same as what aerohead does to there products doesnt make it the truth man ..obviously you havent built many engines in the past or something..but bigger valves always helps in performance over a set of stock valves anyday ...lol....but im not gonna argue with the college know it all.....ive built plenty of engines in my time so far and have always gained performance from a set of 2.02 1.60 valves .....i dont know what your thinking?????
anyway dont listen to half of what you read on here some of the guys really know there stuff and the others are just talkin out there a**...and they only want you to listen to there opinoin and all i gotta say about that is build what you wanna build dont build and buy what others "say" is the best cause about anything you buy out there is gonna be a decent part

 

the only problem is that they are not internaly balanced so the tend to waller out the guide pin on the crank shaft because the 400 harmonic balancers are so big and heavy, other than that they sale good quality stuff that can take a beating, my suggestion is buy the kit, find a machinist that has the equipment and spend the extra $200 or so to get the crank internaly balanced, your engine will rap up faster and be able to turn alot more rpms. plus it will take alot of strane off of the rotating parts...