Intake Upgrade?

[71Duster]

Tore the ehads off the 340 to have a look see at what made it tick. So what I found was a 4.07 bore -.30 over pistons- Stock stroke and its usueing TRW Forged flat top pistons with valve releifs.

It has J heads with 2.02 intakes and 1.60 exhausts. Useing the mopar 284 - 484 cam in it. Currently have an LD340 on the car with my demon on top. My thoughts are to block the crossover in the ld340 and have it powder coated or upgrade if theres any gains to be made.

 

[AdamR]

stick with the LD340.

 

[HawaiiDuster]

I kind of like the LD340, but if you really want to change it I'd go with the RPM Air Gap. With your set up the LD340 should be fine.

 

[AdamR]

I dont think there will be much of a gain if any switching to the PRM. If you have the room just add a 1" tapered spacer