All sifus,
I plan to go with S90 @ 70mm throttle body and aftermarket aluminium intake manifold to match with my Deratech cam.
Meanwhile, is upgrade on air flow meter is necessary?
If needed, what is the air flow code number is good to upgrade?
Also, changing in bigger air flow meter will make the engine run lean ?
Please advise and educate... Thx.
I plan to go with S90 @ 70mm throttle body and aftermarket aluminium intake manifold to match with my Deratech cam.
Meanwhile, is upgrade on air flow meter is necessary?
If needed, what is the air flow code number is good to upgrade?
Also, changing in bigger air flow meter will make the engine run lean ?
Please advise and educate... Thx.