i have a 93 fd with the r1 package and i was wondering if my mods were only 3" dp, mp , greddy titanium cb, greddy intake and a apexi pfc what you think i will b horsepower wise? im hopeing to b at around 300 but i doubt i will reach that

 

you could hit 280-300 with proper tuning

 

It depends what boost you run:

http://dyno.zeroglabs.com/graph.php?...1&SUBMIT=GRAPH

 

With the PFC base (default untuned) maps/settings which are ~11 psi you should easily be over 300 flywheel HP (stock is 255 HP). With the midpipe and this free flowing of an exhaust you will likely have uncontrollable boost creep unless your wastegate is ported. Making matters worse is the stock fuel system is approaching the limit and with the creeping boost could run out of fuel and destroy the engine. A high flow cat would stop the creep and likely still give you around 300 flywheel HP. If you plan on turning up the boost later then look into bigger injectors, adjustable FPR, a higher flowing fuel pump, and/or porting of the wastegate.