I have a tpi motor out of and 89 iroc. It is a 350. Im going to twin turbo it and put it in my 89 silverado. Im getting a set of used vorteck heads off of a suburben. I no i need to get some forged parts but i dont no what all i need to be forged. Im going to have 8 to 1 compression and run between 15 and 20 psi on average. What to i need to do to the heads to prepair them. Any info would be great. Thanks.

 

What pistons are you using to get the 8:1 compression with the vortec heads?