mr_bird said:so after a bit of bargaining with my parents they let me use the money i have in the bank for my car, so i've decided to just go with the trick flow twisted wedge top end kit, it makes around 350 hp, and i think that will be plenty. I still have a few questions though, i was wonderin if i should install a bigger TB, MAFS, injectors, and fuel rails to accomodate the new equipment. Plus it says that it makes this power with a .30 over 306, do you guys recommend rebuilding the short block as a 306, the one i have now has bit less then 70k miles on it and the engine right now seems to pull strong, so im not too shure what to do, what do you guys think?
4 ci won't make much difference to the power. Stock 19lb inj are a bit small for 350hp, by my calculations. It would be nice to upgrade the maf and tb, if you still have the cash after the kit.
I would also recommend a fuel pump as follows.
You can't really get too much fuel pump unless you are talking about the $$$ expense, or possible noise. The regulator takes care of extra pressure and the return line takes car of extra flow.
Here are some recommendations that I worked out according to formulas I found in Four Stroke Performance Tuning by A. Graham Bell. Running at 80% of plump capacity helps ensure a long life from the pump.
_____________________80% of Max______80% of Max
Ford EFI Options_______N/A Limit________Boost Limit
110 lph________________240 hp__________200 hp
155 lph________________340 hp__________280 hp
190 lph________________420 hp__________340 hp
255 lph________________560 hp__________460 hp
I recommend considering future plans when deciding on a fuel pump.