410 cam install - retune required?

[pjm]

I have a 1996 explorer with a 4.0 OHV.

I've modified the engine with a low restriction intake (KKM) and exhaust (Flowmaster). I've added the BBK throttle body.

I have a set of tunes from Bamachips that include a 93 performance tune which I run all the time.

Last year I had to replace the heads due to cracking, so completed an upper end rebuild with new heads and valvetrain. I took the opportunity to install a Comp Cams 410 cam also with the Smith Bros pushrods of the correct length.

My question is, do I need to update my 93 tune since I installed the 410 cam to take full advantage of the cam upgrade, or am I likely ok with my current tune?

 

[Tyson128]

Oh yeah, You have made a timing, intake, and exhaust duration change to your engine. You'll want to take maximum advantage of your gotten gains. You'll have a seat of the pants feel with a tune for your machine.

 

[4rd4life]

agree.