vogs77

In the spring the motor is going to be pulled to address an oil burning issue and I am going to do some mild upgrades while it is apart. I am going to be running GT40 iron heads, Cobra upper and lower, 65mm T-body, and a mild cam, not sure which one yet. Will I need to go with larger injectors for this combo?? Running only 5-6 lbs of boost with vortec at this time. Ignition and fuel pump already upgraded. I also picked up an adjustable pressure regulator. Any advice would be great. Trying to stay with stock injectors so I dont have to buy a new mass air meter also. Keep in mind this is only a street car also, not used for racing.
thanks
mat
Currently rounding up parts for my rebuild. Still looking for some used heads if anyone has any???

mjr46

if you still have the 19's it'd be a good idea with boost to upgrade to 24's or even 30's

vogs77

Would it be harmful or run too lean if they were not upgraded to the larger ones. There is not any spark knock at this time from a lean condition. Will the larger amount of air flow through the engine with the upgrades cause a problem. I may be able to go to larger injectors and new mass air meter, but would not be for another year or so.

mjr46

you'll have to have it on a dyno and check if it leans out on a hard pull if it does you'll need to upgrade or suffer the consequences of detonation due to lean a/f = kaboom for new motor

brynfiv

More air needs more fuel.

vogs77

Is there any way to get around not purchasing a new mass air meter. I will find the money to get injectors, but both together may break the budget with the other upgrades.