Originally Posted by coolstang
I was wondering how much would someone charge me to port and polish my intakes. Also how much would they charge for one intake. What are the advantages of this. Then how much would it cost for someone to self port my heads. Would hp gain from polishing one of my intakes?
What year, and what else do you want to do for the setup???
I used to offer DIY kits for head porting, where I would do 1 cylinder and
then it could be copied. Maybe you can find that somewhere for intakes.
If you decide to DIY it I will give you advice, I did most of this stuff before
anyone else ever thought about it, while Morana was playing with carburetors
I did the world's first SPI intakes in april, 1999
PS: bigpomp is right for SINGLEPORT, but SPI street combos
run really well on a 3.8 with the heads unported, intakes ported,
and a cam and tune. Head porting is good, but for most folks
it is a bit expensive and the gains are minimal, compared to the rest.
STOCK SPI heads flow really well, it is pretty easy to overport them
for a 3.8 and it is done all the time.