They had forged pistons, but not the crank or rods.

 

Forged pistons, rods and a cast crank.
Nothing wrong with that combination at all......

 

Ok just sold my 90, but the guy I am buying the turbo mustang from is out of town for at least a week to two weeks on vacation. Another note I had to sell the Trick Flow top end kit with my 90, not a big deal got what i paid for them. The 92 has the typhoon intake (lower and upper). What heads would work best with boost? Is trick flow about the best for the money? I have a set of gt40x I believe, been a while sense I looked at them. Would that be a ok combo, GT40x heads with Typhoon intake and boost? I will be keeping it at 9-10psi, and after I put the heads on Ill be tuning it again, with the stock internals I'm going to set the rev limiter to 5900-6000 to be extra safe. I appreciate all the info you guys offer!

 

Trick Flow, Edelbrock, AFR.
Pick a head, they are all good.
If I had 15 racers in one room, they will have 15 different opinions about heads.

 

I've run all 3, no complaints and all 3 have lived up to expectations.