combo ?

[talstar]

With the combo I am about to have going, how much would a set of heads help? I don't want a bigger turbo, just want to max out what I have with alcohol.

 

[blackbuick87]

$1600 for a set of GN1's is a little too much if you are going to stay with the 44. You can get 90% of the perf gain by having a good shop that knows what they are doing port your iron heads for you for $6-700, IMO

 

[salvageV6]

I agree with Bob and I bought a nice set of used 50K new spring heads for $100.

If you do the install yourself you can save money and pay for some good porting, or you can learn and try it yourself.

I won't touch GM's work until I pop a gasket.

I would want .3-.4 with your combo. and the heads.

 

[talstar]

Would the GN-1s work with my current combo? I have another block that will be built to run a low 11 or better that could use those heads. I'm thinking a couple of years down the road, but I don't mind spending the money if it would help me out with my current set up.

 

[blackbuick87]

They will work, yes, but they will not be money well spent. I would wait and see how TA performance's new heads perform, and then decide which ones to buy

 

[talstar]

I'm am going to wait. It will be the summer before I do anything, so maybe the TA heads will be all everyone hopes for and any bugs will be worked out by then.