67Firebird455

iTrader: (27)

I plan to use my old truck MAF (85mm Delphi unit) which is an oddball size, on both sides. They're under 4", but larger than 3.75 on one side. What is the correct size coupler to go from a 78mm TB to this unit, and from the other side of the MAF to a 3" charge pipe?! I want to do this right the first time, and would prefer not to have to use electrical tape to shim it for a 4" coupler lol.

Thanks in advance guys!

Tony

MaxxMitchell

iTrader: (15)

3.80-3.85 if you can find them. Most ditch the maf when going boosted.

67Firebird455

iTrader: (27)

I keep hearing that... I hear speed density is a good thing, but my tuner recommended a MAF for some reason.