More from a 350 mag
 

Without changing alot what is the best way to get more power our of a 350 mag mpi.

I have looked at doing the stock replacement manifolds with something like a Thumper or a EMI high flow. Not sure if one is better than the other. High Flow is like 1600, Thumpers is 1000.

Can't seem to find a listing for a better air flow system for that engine.

And Props. I am running a 21p rh 3blade Vengance and if I go to a 4 blade what do I need to switch to? Heard they perform better and give better hole shot but i will lose a couple on top end.

As is boat does 58 - 64 depending on how much i have in it.

Hope someone has some good advice.

Thanks

Take it no ideas?

Moding motor only opens up a can a worms , Money funnel , next is a lower unit and boat getting towed in. I would sell boat buy bigger boat with bigger stock hp( aka merc blue motors / or illmores ) and enjoy turnkey dependability unless your a good wrench and want to kill a lot of time dialing in your boat .

I have done several 350 mags with both Prochargers and Whipples. They all made 500hp or more and were very reliable. As long as you do the fuel system along with a few other items, you can have a turn key piece. I would not get into that engine internally. It just doesn't have the parts in it to make a high hp NA engine.
Eddie