ok, so i am swapping out my 305 for a 350. I have been looking into the trick flow engine kits. They are the ones found in Summits Racing catalog. The one i want is rated at 420 horse and 395 torque if i use a holly 750 and a edlebrock victor jr. intake. Are these trick flow combos any good. Has any one had experience with them. Plus trick flow doesnt say what kind of pistons they use. I was also thinking about using my tpi set-up on this combo. I was told that my tpi set-up, stock will onlly flow up to 190cfm. I was also told that the rule of thumb is 2hp per cfm. So what would i need to do to make my tpi cabable of supporting a little over 400 horse.
thanks

 

Stealth ram or similar intake. You will make big torque with your TPI but it will cost you HP.

 

So if i go with a stealth ram do i need to buy the whole set-up to make the numbers i want or can i get away with just getting the lower intake and pleneum and putting the rest of my tpi stuff on
thanks

 

This site has a lot of info, including dyno and flow camparisons on a similarly modified engine to the one you are considering.
http://www.stealthram.com/costtoswap.html

 

You'd need to take it off and put something else on.

The StealthRam would work; also the SuperRam, MiniRam and ProRam (lots of ramming here) would do it, or a modified LT1 intake. TPI in any form, modified or otherwise, will not. IMHO, the MiniRam or LT1 setup would be the best way to go, closely followed by the StealthRam. I would not use a SuperRam on anything I had to work on myself, or pay somebody else by the hour to work on. You may have alot more money than me to spend on such things; but that's for you to decide.

Trick Flow heads require special attention to the piston-to-valve clearance and cam lift. The way they get their flow is by relocating the valves from the stock position, which in turn creates this situation. Get their recommendations before you buy anything.

 

irocfreak,

Be advised the Trick Flow kits in Summit do not include pistons. They are a top end kit with heads, gaskets, crappy non roller cam, and rockers.

Just letting you know if you didn't already,
Later,
Charlie

 

Now are those cams crappy because there are not a roller cam or are there other reasons?

 

Just partial to roller cams. They make more power per degree of duration due to their faster ramp rates. No other reason. I also wouldn't trust a hydraulic flat tappet that I didn't know who manufactered it. I had cheapy go flat once.

 

thanks for the input, my stock cam just went flat too, but that because of those darn mustangs and know im try to find the best way to a 400 horse 350