Whipple pulley advice and tune

[de123]

I just purchased a 04 cobra stock engine gen 1 whipple with a 3.5 upper and boost is set at 14 lbs , cat back exhaust no headers at the moment from the spec sheet it made 417 rwhp on 91 oct tune (mustang dyne) , what possible hp ratings can I get if I change upper pulley and headers with new tune maybe injector ?? Or what do you guys recommend I'm new to the mustang game thanks in advance , I'm also close to Hpp racing in lewisvile thought about taking it to them

 

[01yellercobra]

You should be able to make 600rwhp with that blower. The power goal will determine what size injectors. But 60's seem to be a really popular choice. They should get you well into the 600's. You'll have to start looking into fuel system upgrades. Pumps, wire upgrade, dual FPDM's. I suggest going into the Terminator forum and do some lurking. I'm sure you'll find the info you need.

 

[Wildman113]

417WHP seems really low for 14lbs of boost on a whipple, perhaps the tune is very conservative since its set for 91 octane.

 

[kingcobra8541]

If you are running stock 39# injectors and pumps without a BAP even at 14 pounds you are probably running out of fuel. We need more info on the combo...

 

[95PGTTech]

add long tubes
add 4lb lower
add fuel system
add 60 lb injectors
put 93 octane in it

go make high 500s, low 600s