Cam, pistons and intake questions

[voodookills31]

Finally found a shop that does american engines, speak english and knows the specs of my cars engine. so here are some questions i have.

I have a set of Trickflow pistons in my basement waiting to be put into my car pn51404000. I know the TFS heads have a weird design where the valves are angled differently than a normal head. My question is would changing the pistons to the TFS TW pistons make a difference power-wise? the pistons i have now were fly-cut so I have enough PTV clearance.

My next question is with my KB blower,which sits on a stock lower intake, would changing the lower to a ported intake change the amount of boost im making for the better or the worse? and would it make more power or not?

My last question(for now) is if im going to have the pistons changed out, would changing the cam make alot of difference at this point? if so what cam would be good? Thanks

[Stang_1973]

id wouldve recommended you talked to Ron Bell from the beginning.

[Sonic Blue 85]

Swapping the pistons could increase power, but not knowing TFS pistons, I can not say how much. The reasons the pistons could increase power is, they are probably lighter, probably have thinner piston rings that have less drag. This is assuming I am remembering correctly that you currently have TRW pistons. Check the piston design, if they are listed as full floating/ have spriral locks for the piston pins, you will need to change the rods also to a floating pin and have the pin bushings honed so the pins will fit in the bushings properly. A sportsman style rod will work fine for what you are doing, you just need to make sure the rods you get are listed as bushed, meaning they have bushings in the pin end. You will also need to have the rotating assembly reballanced.

As for having someone port the lower, that would not be a bad idea, it should lower restriction, which would increase flow through the intake. You may see a slight decrease in boost pressure if the intake was very well ported. A decrease in boost pressure would mean that you have removed some of the restriction, which would lower air charge temps. You probably would not see more that 1 psi of reduction in boost pressure, because the heads on the other end of the intake flow a lot more than the intake.
As for the cam I think you have a X303, that cam has enough lift and duration combined with the head flow, those parts combined will allow all of air the blower can flow to get into your engine without much restriction. Your exhaust is probably much more of a restriction, once you increase exhaust flow and get a larger blower, then possibly look at getting a different cam.