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WHICH HEADERS WORK BEST WITH GT 40P HEADS?
CAN THE STOCK INTAKE & STOCK MASS AIR TUBE BE PORTED? ( FUNDS RUNNING LOW). MY SET UP WOULD BE GT40P HEADS, 65MM THROTLE BODY, B303 CAM, 1.6 ROLLERS, 19LBS INJECTORS,( PLUS PORTED STOCK MENTIONED). WHAT KIND OF HP AM I LOOKING AT?
 

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Yes the stock intake can be ported, and it can flow really well, I currently have two identical ones,(an extra one)

I cut the upper in half and port it then weld it back, the lower you actually port through the dog legs and then fill in later with an epoxy or weld,

I have never compared/swapped intakes but this will kick the crap out of a stock cobra intake

(If someone wants to do a comparison it would be cool to see the real results.)

The ported stock meter will screw up your air/fuel, Unless you open up the meter vain proportionally.

I think it is better to chuck it and buy after market: C&L73mm VS. Bullit 75mm go with the C&L I have done this comparison many times and the C&L is better all the way around with 24Lb & 30lb injectors)
 
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