JZTRK

I have a pin hole antifreeze leak on the lower intake manifold by #4 at the very back of the motor I am going to replace the upper and lower with the holley systemax will it run any different the car has the folowing mods
headers, BBK H PIPE, and American Thunder Flowmaster cat back, BBK COLD AIR INTAKE AC DELETE KIT

silver91gt

its from the heater hoses there.
they attach to the firewall from those 2 metal tubes going along the passenger side of the intake.

93 LX FiveO

mine leaks from the same spot i think

mjr46

if your switching from stock then upgrading to the holley may net you a few extra ponies..but nothing earth shattering

JZTRK

yeah the first thing I checked was the heater hoses but thay are ok I am about 75% shure its coming from the lower manifold given the angle the leak is shooting.I just found out today that the president is sending me 1,200 bucks so I have decided to buy 24lbs injectors and a bigger T.B what size would be better the 65mm or the 70mm and dose the MAF need to be calibrated after the new injectors? oh and it has a new 225lph walbrough fuel pump

PRO50SC

Well, before you start increasing fuel load, what mods does the car have?